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Test your basic knowledge |
Praxis I Math
Start Test
Study First
Subjects
:
praxis
,
math
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. In a quadratic formula if the a value of the parabola is less than 0 the parabola opens ___________
Straight line
Rhomus
Downward
Chord
2. 1/a^n can also be written as a to the ______
Chord
Reflex
n
Collinear
3. What is the formula for a square if you only know the length of the diaganol
Downward
b/2a
1/2 (d)^2
Exterior angle
4. An angle whose measure is 90 degrees
Isosceles
Right angle
Associative
Point line
5. An angle whose measure is 180 degrees
N!/(r!(n - r)!)
Perpendicular
Polygon
Straight
6. Positions = number of position can be calculated by finding the ______ of the total number of items
Consecutive angles
Collinear
Vertices
Factoral
7. What is the linear equation where a - b and c are constants b cannot = 0
Square
Exponent
Bisect
Ax+ by = c
8. The greatest common factor is the largest __________that is common to all member of the set
Polygon
Hypotenuse
Factor
I
9. To calculate a permutation (order does not matter) what is the formula
Rectangle
N!/ (n - r)!
6a^2
A+b
10. The associative property of multiplicaiton for every real number a - for every realy number b for every real number c (ab)c = ______
Exponent
A(bc)
Trapezoid
Rectangle
11. Two angles with a common vertex and with sides that are 2 pairs of opposite rays
1/2h (b1 + b2)
Vertical
1/3 pi r^2 h
Inverse
12. In a quadratic equation in 2 unknowns has the general formula ax^2 + bxy + cy^2+dx +ey+ f = 0 the graph is called an __________ (b^2-4ac greater then 0)
Parabola parallel line
4/3 pi r^3
Multiply
Hyperbola
13. What is the closure property of addition - for every real number a - for every real number b ______________ is a real number
Coplanar
A+b
Equilateral
Congruence
14. A __________of a circle is a line segment drawn from the center of the circle to any point on the circle
Radius
Function single
Commutative
Quadratic formula
15. The surface area of a cube is what formula
6a^2
G value
Pi r^2 h
Linear substitute
16. In complex numbers the square root of -1 = ______
Vertices
Arc
I
Acute
17. When proving 2 polygons are similar - what is the formula you use (hint: n= the number of sides)
(pi)r ^2
Isosceles
((n -2) (180))/n
Line
18. Is a polygon that is both equilateral and equangular
Added
2
Regular polygon
Complimentary
19. If all points lie in the same plane they are __________
Equiangular
Coplanar
Extranous excluded
Point circle does not exist
20. The y value of the vertex of parabola is the equation
(4ac - b^2)/4a
Parallel
Acute
One
21. What is the formula for a combination (where order matters)
Right
Ray
(c - d)/d
N!/(r!(n - r)!)
22. A closed three sided figure is called a ____________
Collinear
Radius
Distance between 2 points
Triangle
23. What is the volume of a cone
1/3 pi r^2 h
Right
Line
Y
24. How do you calculate the area of a parallelogram - what is the formula
Straight
Bh
Multiply
Y
25. What are the 2 formulas to calculate the circumference of a circle
Hypotenuse
Line
Ellipse
Pi(d) 2(pi)r
26. The x value of the vertex of a parabola is the equation
Vertical
Distance
b/2a
D/c
27. An angle whose measure is larger than 0 degrees but smaller than 90 degrees
1
Plane
Acute
Negative
28. A ___________is a figure with the same number of sides as angles
1/2h (b1 + b2)
S^2
Lw
Polygon
29. x= - b (+ or -) square root of (b^2-4ac) divided by 2a - is called the _____________ and can be used to find the roots of a problem
Acute
4pi r^2
Quadratic formula
Associative
30. A parallelogram with right angles and equal diagonals
Square
Length number
Rectangle
Exterior angle
31. Is a polygon whose angles are equal in measurement
Equiangular polygon
Distance between 2 points
Right angle
Point circle does not exist
32. When solving a system of equation involving quadratics and one is linear and the other is quadratic - solve the _______ first - then substitue the found value into the quadratic and solve for the other unknown
Length number
Multiply
Linear substitute
Line
33. When you find the inverse of a function switch the x value with a ____ - solve for y
Collinear
Y
1/3Bh
Line
34. In a quadratic equation in 2 unknowns has the general formula ax^2 + bxy + cy^2+dx +ey+ f = 0 the graph is called an __________or a __________ or __________(b=0 and a=c)
Point circle does not exist
Y
((n -2) (180))/n
Pi r^2 h
35. The volume of a cube is
A^3
Exterior angle
N!/ (n - r)!
Factoral
36. Two angles whose sum totals 90 degrees
Line
Hypotenuse
Complimentary
Altitude
37. The _______ tells how many times the root needs to be multiplied by itself
G value
Subtract substitute
Index
Mildline
38. What is a quadrilateral with 2 and only 2 sides parallel
180
Trapezoid
Ratio
2
39. To solve a system of equations you must first make the two equations ___________to each other - then use the discrimant to find if the system has any real roots
N!/(r!(n - r)!)
Scalene
Radius
Equal
40. A __________is any process that assigns a ___________value of y to each number of x
Function single
Plane
Exponent
Equiangular polygon
41. The union of two rays having the same end point
0
Angle
1/2h (b1 + b2)
Perpendicular
42. The side of a right triangle opposite the right angle
Circle
Straight line
Point circle does not exist
Hypotenuse
43. When you see f of g replace the x in f(x) with the ___________
Apothem
1
G value
Straight
44. A triangle with a 90 degrees angle
Right
Commutative
1/3 pi r^2 h
Bisect
45. To find the x intersept we need to make __________= 0
Multiply
Vertices
Equiangular
Y
46. If you want to convert a fraction to a percentage you need to make it =
Consecutive angles
x over 100
Obtuse
(4ac - b^2)/4a
47. i^2 = _____________
One
1
Straight line
Rhomus
48. A set of points in the seame plane equidistant from a fixed point - called its center
Size
Circumscribed circle
Circle
Transitive
49. How do you calculate the area of a trapezoid (hint h= altitude - perpendicular segment)
Adjacent
1/2h (b1 + b2)
1
Supplementary
50. What is the square of ((x1-x2) + (y1- y2)) =
1/3 pi r^2 h
Y
Addition subtration
Distance between 2 points