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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 equation with 2 unknown which has the formula ax^2 + bxy + cy^2 + dx + ey + f the graph is _____________ or a pair of __________ if ( b^2-4ac= 0) which may be coincident or it does not exist
S^2
Secant
Parabola parallel line
Rectangle
2. The measure of a minor arc is the measure of the __________that intercepts the arc
Central angle
(4ac - b^2)/4a
A(bc)
Perpendicular
3. What is the formula for a combination (where order matters)
Rectangle
N!/(r!(n - r)!)
Ray
Ellipse
4. The side of a right triangle opposite the right angle
Hypotenuse
Quadratic formula
Distributive
Apothem
5. A line that joins the midpoint of two sides of a triangle is called the__________
Regular polygon
Mildline
Rhomus
Hyotenuse
6. Log base b to the b^x =
Scalene
D/c
S^2
x
7. 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
Linear substitute
Point slope formula
1/2bh
(4ac - b^2)/4a
8. 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 __________ (if a - b and c are not zero)
Median
Y
Ellipse
Circumscribed circle
9. Is a polygon whose sides are equal in measure
(pi)r ^2
Equilateral polygon
Arc
A(bc)
10. The possible solution of a quadratic equatin ax^2 + bx + c= 0 are called the_______
I
Plane
Roots
Bisector
11. To calculate the diagnol of a square you multipy any ______by the _______________of 2
G value
Bh
Side square root
Square
12. 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
Ratio
Pi r^2 h
Area of a polygon
Quadratic formula
13. When proving 2 polygons are similar - what is the formula you use (hint: n= the number of sides)
((n -2) (180))/n
Hyotenuse
N!/ (n - r)!
Side square root
14. When you have a linear equation such as ax + by = c you may use ___________ or _____________ to solve the problem - (you may first have to multiply through one of the equation to make either the x or y value equal)
Complex
180
Addition subtration
Vertical
15. The __________property of additon says that fro every real number a - ther is a real number such that a + - a = - a+ a = 0
A x b x c
Downward
Inverse
2
16. What is the closure property of addition - for every real number a - for every real number b ______________ is a real number
Altitude
A+b
(c+d)/d
Symmetric
17. The graph of y= ax^2 + bx + c is a curve know as a ____________
Rhomus
Parabola
Scalene
4/3 pi r^3
18. What is the formula to calculate the area of a rectangle
Lw
Inverse
Perpendicular
Parallelogram
19. A _________ number is a number that can be written in the form of a + bi
A x b x c
Equal
Chord
Complex
20. The _______says for every reals number a - for every real number b and for every real number c - a(b+c) = ab + ac
Distributive
Reflex
Polygon
Complex
21. What is the surface area of a right circular cylinder with a radius of r and a height of h
(c - d)/d
Isosceles
2pi r^2 + 2pi rh
Y
22. To find the x intersept we need to make __________= 0
1/2 (d)^2
Y
0
Trapezoid
23. To calculate a permutation (order does not matter) what is the formula
Vertical
N!/ (n - r)!
Pi(d) 2(pi)r
Isosceles
24. The absolue value of the difference of the coordinates of any two points on the real number line
Distance
Associative
Ax+ by = c
A+b
25. i^2 = _____________
0
Transitive
1
S^2
26. _____________ of angles is an equivalance relation - it is reflexive - symmetric and transitive
4/3 pi r^3
Y
Quadratic formula
Congruence
27. Two lines are said to be ______________ if they intersect and form right angles
Line
Perpendicular
0
Acute
28. The greatest common factor is the largest __________that is common to all member of the set
Pi r^2 h
Factor
N!/(r!(n - r)!)
Negative
29. If a triangle has two congruent sides then it is an _________triangle
A x b x c
2pi r^2 + 2pi rh
Equiangular
Isosceles
30. The set of all points on a half line and the dividing point itself
Y
Trapezoid
Ray
Vertical
31. The segment from the center of the polygon perpendicular to as side of the polygon
Apothem
Factoral
Ellipse
1/2 (d1 + d2)
32. If all points lie in the same plane they are __________
Coplanar
Consecutive angles
1
A^3
33. 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
Circumscribed circle
Radius
Collinear
Equal
34. In the law of proportion if a/b = c/d then (a - b)/b =
Y
Equiangular polygon
Consecutive angles
(c - d)/d
35. In a logarithm the answer following the = sign is the __________
Exponent
A+b
Vertical
Multiply
36. In complex numbers the square root of -1 = ______
1/2h (b1 + b2)
Hypotenuse
I
((n -2) (180))/n
37. What is the formula for the area of a rhomus - (hint d= diagonal)
Arc
1/2 (d1 + d2)
Circle
N!/(r!(n - r)!)
38. In the law of proportion if a/b = c/d then ad =
Subtract substitute
Equiangular polygon
Addition subtration
Bc
39. When solving a system of equation with 2 quadratic function - first __________ one equation from the other equation to find isolate one variable - solve for that variable - then ______ and solve for the other variable
Subtract substitute
1/2bh
Ray
Ax+ by = c
40. Once you find the roots of a radical equation you must check them to see if any are __________roots (which means they are not equal when plugged back into the original formula) these roots must be ___________
Mildline
Extranous excluded
Acute
Parabola
41. When calculating the number of sides in a polygon make 360 degrees/ n = ______________
Negative
1
Exterior angle
Ax+ by = c
42. The surface area of a cube is what formula
6a^2
Lw
Rectangle
Parabola parallel line
43. What is the area of a pyramid or cone (hint B= area of Base)
A(bc)
1/3Bh
Congruence
Radius
44. Two distinct straight lines can intersect at most at only one point
One
Ray
S^2
Isosceles
45. An angle whose measure is greater than 180 degrees and less than 360 degrees
Every
Inverse
0
Reflex
46. A ___________is a figure with the same number of sides as angles
Ray
Polygon
Circle
Quadratic formula
47. A point has no ________or thickness
Hyotenuse
Straight
Size
Pi(d) 2(pi)r
48. In the pythagorean theorm a^2 + b^2 = c^2 - c is called the ______
Hyotenuse
Altitude
Addition subtration
Ellipse
49. A line that intersects a circle in tow point is called the _______
Secant
Parabola
Point slope formula
((n -2) (180))/n
50. What is the formula for the area of a triangle
1/2bh
180
Regular polygon
Ab