Test your basic knowledge |

College Algebra Test

Subjects : math, algebra

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. y^2+x=4 is this a function? Why?

2. What is the domain of an identity function?
0<c<1 - horizontal stretching
2nd catalog (zero key -) abs(x) - graph
Parraelle line
(-infinity - +infinity)

3. What type of line is a constant function?
Horizontal
Zero slope
Undefined slope
Inconsistant

4. What is a range?
The second set of components of an ordered pair
Any set of ordered pairs
Same
F(x)=suare root of x

5. What is the formula for to calculate the difference of a quotient function?
(-infinity - +infinity)
F(x+h)-f(x)/h h cannot equal zero
Horizontal right
X is the first invesment at 15% and the next is the original $50K less the first investment at the second interest rate or 7% = $6000

6. What is the slope intercept formula? Define all the variables.
X^2
The second set of components of an ordered pair
1 -2 -3
Y=mx+b - b is the y intercept and m is the slope - x -y are the coordinates on the graph

7. What is the domain of a square root function?
Inconsistant
Inconsistant
Divide x coorindate by c to get the y coorindate and they shrink or stretch the graph accordingly
[0 -+infinity)

8. What does the square root function look like on a graph?
No because you cannot have one domain pointing at two y's or ranges
P=2w+2L w=x and l=w+200 2x+2(x+200)=1040
Line ascending to the right gradually
(-infinity - +infinity)

9. standard absolute value - horizontal shift formulas for left and right
F(x) = x
(-infinity - +infinity)
Cannot be drawn in quizlet
F(x+c) and f(x-c)

10. Repair bill for a boat is $1 -603. $532 is for parts and it's $63 per hour for labor. How many hours does it take to fix the boat and What is x?
Postiive slope
X is the hours to repair the boat. $1603-532=anwser/63 = x
Even
(-infinity - +infinity)

11. 4(x-7)=4x-28 is what type of an equation?
Y=x - identity function
Cannot be drawn in quizlet
F(x)=x^3
Identity

12. 4x+5x=8x is what type of an equation?
C(t) = 20+(.40(t-60) if you have a base of $20 for a plan and .40 cents above every minute you spend over one hour you have to first know how many minutes you went over one hour - then multuply by .40 cents for the additional minutes and add the base
A V
Y=mx+b - b is the y intercept and m is the slope - x -y are the coordinates on the graph
Conditional

13. What can we substitute for f(x)?
Y
Down
Absolute Value - Constant and Standard Quadratic
(-infinity - +infinity)

14. How many domains can you have pointing to one range?
As many as you like
Down
The first set of components of an ordered pair
2nd key - x^2 - graph

15. What is a domain?
(-infinity - +infinity)
Y
Even
The first set of components of an ordered pair

16. x=all real numbers is what type of an equation?
Identity
45 degree angle
Math 4 x - graph
C(t) = 20+(.40(t-60) if you have a base of $20 for a plan and .40 cents above every minute you spend over one hour you have to first know how many minutes you went over one hour - then multuply by .40 cents for the additional minutes and add the base

17. What is the range for a standard quadratic function?
(-infinity - 0]you[0 - +infinity)
P=2w+2L w=x and l=w+200 2x+2(x+200)=1040
Same
The opposite coordinates

18. What is an identity function?
(f+g) - (f-g) - (fg) - (f/g) all of x
45 degree angle
Carefuly understand let x be one of the unknowns - write expressions for any other unknowns in terms of x - write an equation in x that models the verbal conditions of the problem - solve the equation - check solution in the original wording of the p
F of g and g of f

19. In an identity function if f(10)=x than What is y?
C(t) = 20+(.40(t-60) if you have a base of $20 for a plan and .40 cents above every minute you spend over one hour you have to first know how many minutes you went over one hour - then multuply by .40 cents for the additional minutes and add the base
Y=10
Perpendicular line
Up

20. In an identity function if f(10)=x than What is y?
Perpendicular line
Piecewise
Y=10
X=a

21. Draw or discuss an increasing function
Odd
The second set of components of an ordered pair
(-infinity - +infinity)
Cannot be drawn in quizlet

22. Which direction does f(x+c) move
Conditional
[0 -+infinity)
Even
Horizontal left

23. What is slope?
(-infinity - +infinity)
F(x) = x
A line passing through two distinct points
Equation of a line

24. When is the only time (-infinity - +infinity) is not the domain?
In a quotient
P=2w+2L w=x and l=w+200 2x+2(x+200)=1040
Every line has an equation that can be written in general form. Ax+By+C=0 where A -B & C are real numbers and A & B cannot be zero.
F(x+h)-f(x)/h h cannot equal zero

25. {(1 -4)(2 -6)(3 -9)} what numbers are the range?
X=a
Y=x^2 - graph
(-infinity - +infinity)
4 -6 -9

26. (1 -5)(2 -5)(3 -5)(4 -5) - is this a function?
No because you cannot have one domain pointing at two y's or ranges
(-infinity - +infinity)
Even
Yes - all the domains points to one range

27. What is the domain of an identity function?
Even
0<c<1 - horizontal stretching
(-infinity - +infinity)
45 degree angle

28. What is the formula for an identity function?
F(x) = x
Approach neg toward x through zero and above positive close to x
Horizontal
C(t) = 20+(.40(t-60) if you have a base of $20 for a plan and .40 cents above every minute you spend over one hour you have to first know how many minutes you went over one hour - then multuply by .40 cents for the additional minutes and add the base

29. Two vertical lines side by side are a symbol for what
The second set of components of an ordered pair
F(x+h)-f(x)/h h cannot equal zero
C(t) = 20+(.40(t-60) if you have a base of $20 for a plan and .40 cents above every minute you spend over one hour you have to first know how many minutes you went over one hour - then multuply by .40 cents for the additional minutes and add the base
Parraelle line

30. How do you calculate a constant function in your calculator?
Carefuly understand let x be one of the unknowns - write expressions for any other unknowns in terms of x - write an equation in x that models the verbal conditions of the problem - solve the equation - check solution in the original wording of the p
Parabola - up one and right three
Absolute Value - Constant and Standard Quadratic
Y= then enter the number then press graph

31. What type of slope do you have when a line falls left to right and m<0?
1 -2 -3
Identity
Neither
Negative slope

32. Is an identity function even - odd or neither?
Odd
The slope of a line containing two points
In a quotient
(-infinity - 0]you[0 - +infinity)

33. What are two examples of composit functions?
F of g and g of f
(-infinity - +infinity)
[0 -+infinity)
Y=x - identity function

34. 4(x-7)=4x+28 is what type of an equation?
Yes because two x's or domains can point to one y
Any set of ordered pairs
Inconsitent
Even

35. What is the domain for the standard cubic function?
(-infinity - +infinity)
Square Root
Y
The minimum or maximum points

36. f(x) = x^2+3x+5 - what type of formula is this?
(-infinity - +infinity)
Function notation
2nd catalog (zero key -) abs(x) - graph
Yes because two x's or domains can point to one y

37. What is the line called that illustrates the straight line between the two points when showing average rate of change?
Y=x - identity function
The secant line
Cannot be drawn in quizlet
[0 -+infinity)

38. What is another way to write f(x)=x - what type of function is this?
Piecewise
Y=x - identity function
Negative slope
F(x^1)=f(x^2)

39. Draw or discuss a constant function
Change in y / change in x = rise / run = y2-y1 / x2-x1
(-infinity - +infinity)
Cannot be drawn in quizlet
Y=IxI

40. What is the average rate of change formula?
Y=IxI
Inconsitent
Undefined slope
F(x2)-f(x1) / x2-x1

41. How do you graph Ax+By+C=0?
F(x+c) and f(x-c)
When does a graph not define y as a function of x?
C(t) = 20+(.40(t-60) if you have a base of $20 for a plan and .40 cents above every minute you spend over one hour you have to first know how many minutes you went over one hour - then multuply by .40 cents for the additional minutes and add the base
Set the x and y to zero and get the intercepts and then plot the points

42. What is a constant function?
F(x^1)=f(x^2)
Yes because two x's or domains can point to one y
Horizontal left
The single number y=

43. What type of line is a constant function?
Horizontal
X2-x1 because the demonaitor of a quotient can never equal zero
Y=x^2 - graph
Y=IxI

44. Why can h not equal zero in the difference of a quotient function formula?
A V
Function is the corespondence from the domain to the range. Each element of the domain relates to one element in the range.
F(x)=suare root of x
Because the demintor of a quotient can never equal zero

45. Draw or discuss a constant function
Parabola
Parabola - up one and right three
Set the x and y to zero and get the intercepts and then plot the points
Cannot be drawn in quizlet

46. x= a real number is what type of equation?
20+.05x=5+.10x x=minutes
Down
Conditional
Identity

47. An American Football field is 200 feet longer than it's width. The perimeter is 1040. What are the dimensions?
F(x)=IxI
P=2w+2L w=x and l=w+200 2x+2(x+200)=1040
Horizontal
Postiive slope

48. What is the formula for slope?
When does a graph not define y as a function of x?
Identity
Set the x and y to zero and get the intercepts and then plot the points
Change in y / change in x = rise / run = y2-y1 / x2-x1

49. {(1 -4)(2 -6)(3 -9)} what numbers are the range?
4 -6 -9
Yes because two x's or domains can point to one y
(-infinity - +infinity)
No because you cannot have one domain pointing at two y's or ranges

50. What is the point slope formula and when do you use it?
(y-y1)=m(x-x1) and you use it when you have one point or set of coordinates and the slope
Identity
The minimum or maximum points
(-infinity - +infinity)

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Test your basic knowledge |

College Algebra Test

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Adobe Photoshop CS 5 Keyboard Shortcuts

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After Effects Keyboard Shortcuts

Agile Development

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