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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. The y value of the vertex of parabola is the equation
Area of a polygon
Radius
2pi r^2 + 2pi rh
(4ac - b^2)/4a
2. In complex numbers the square root of -1 = ______
I
A(bc)
Reflex
Isosceles
3. In a quadratic formula if the a value of the parabola is less than 0 the parabola opens ___________
Rhomus
Downward
Quadratic formula
Isosceles
4. 2 angles that have their vertices at the endpoints of the same side of a parallelogram are called ____________________
1
Commutative
Index
Consecutive angles
5. The value of x where a point intersects the Y axis= ___________
0
Lw
Equilateral
Linear substitute
6. For each real number a - for each real number b - if a= b - then b=a
Symmetric
Equiangular polygon
Y
Y
7. 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 ___________
Extranous excluded
Median
(4ac - b^2)/4a
1/2 (d1 + d2)
8. 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
Subtract substitute
Commutative
Linear substitute
Consecutive angles
9. A series adjacent points that connect
Dependent
6a^2
Vertical
Line
10. The possible solution of a quadratic equatin ax^2 + bx + c= 0 are called the_______
Lw
Ellipse
Hypotenuse
Roots
11. A line segment connecting a vertex of a triangle and the midpoint of the opposite side is called a __________ of a triangle
Obtuse angle
Size
0
Median
12. The __________ of a regular polygon is the segment joining an vertex with the center of the polygon
Pi(d) 2(pi)r
1/2h (b1 + b2)
Every
Radius
13. If a=0 in a quadratic formula - the quadratic is reduced to a linear function and a ____________
Consecutive angles
Equilateral
Straight line
x
14. What is the square of ((x1-x2) + (y1- y2)) =
Complimentary
0
Radius
Distance between 2 points
15. What is the surface area of a right circular cylinder with a radius of r and a height of h
(4ac - b^2)/4a
Bc
2pi r^2 + 2pi rh
Acute
16. In the pythagorean theorm a^2 + b^2 = c^2 - c is called the ______
Hyotenuse
A^3
Distributive
Downward
17. A point has no ________or thickness
Size
Point circle does not exist
((n -2) (180))/n
One
18. The sum of the interior angles of a triangle = ___________
I
180
Vertices
Side square root
19. If all points lie in the same plane they are __________
Coplanar
Perpendicular
Arc
Bisect
20. What property of equality ways for each real number a - for each real number b - for each real number c - if a=b and b=c - then a=c
Transitive
Rhomus
Altitude
Reflexive
21. A closed three sided figure is called a ____________
Bh
Acute
Triangle
Congruence
22. Log base b to the b = ____________
1
N!/(r!(n - r)!)
Index
N!/ (n - r)!
23. What is the surface area of a sphere with a radius r
A^3
1
1/2h (b1 + b2)
4pi r^2
24. Two angles whose sum totals 90 degrees
Radius
Complimentary
(c+d)/d
Equiangular
25. 1/a^n can also be written as a to the ______
Straight
Right
Polygon
n
26. A line segment joining two poing on a circle is called a ________
Commutative
Bc
Chord
Reflex
27. _____________ of angles is an equivalance relation - it is reflexive - symmetric and transitive
b/2a
Lw
Congruence
Bisect
28. A ray _________ divides the angle into 2 angles that have equal measure
Vertices
Bisect
Reflexive
Every
29. A triangle with no equal sides
Scalene
Congruence
1
Bh
30. Is a polygon that is both equilateral and equangular
0
Regular polygon
Obtuse angle
Obtuse
31. The value of y where a point intersects the x axis = __________
Y
0
Extranous excluded
Added
32. What type of trapezoid has its non parallel sides equal
Ray
Acute
Inverse
Isosceles
33. The _______says for every reals number a - for every real number b and for every real number c - a(b+c) = ab + ac
Factoral
Rectangle
Distributive
Distance between 2 points
34. To calculate the diagnol of a square you multipy any ______by the _______________of 2
Side square root
Square
Triangle
Multiply
35. What is the formula for a combination (where order matters)
1
N!/(r!(n - r)!)
Central angle
n
36. When you see f of g replace the x in f(x) with the ___________
1/3Bh
G value
Ratio
Altitude
37. What is the formula the formula for an arc if you know the radius and the n= central angle
Factor
(n/360) X 2pi r
x
Reflexive
38. A parallelogram that has tow adjacent sides that are equal and whose sides are perpendicular to each other
1
Index
Rhomus
A x b x c
39. When you find the inverse of a function switch the x value with a ____ - solve for y
Lw
Y
Area of a polygon
Triangle
40. The _________property of addition says that for every real number a - for every real number b for every real number c (a+b) + c = a + (b+c)
Associative
Every
Complimentary
Apothem
41. Is a polygon whose sides are equal in measure
Hyotenuse
(4ac - b^2)/4a
1/3 pi r^2 h
Equilateral polygon
42. A triangle whose sides are equal
Equilateral
Y
Obtuse
Complex
43. The perimeter of two similar polygons have the same ratio as the measure of any pair of corresponding line segments of the polygon
Triangle
Positive
Downward
Ratio
44. When calculating the probability of mutually exclusive event y (can not occur simultaniously) you need to ______their seperate probabilities (uses the word 'or')
Plane
Added
Vertical
Triangle
45. y2- y1 divided by x2- x1 = the ____________
Mildline
Slope
Trapezoid
Ab
46. The volume of a cube is
A^3
Acute
Hyotenuse
Equiangular polygon
47. 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)
Addition subtration
Equal
Radius
Polygon
48. A triangle with a 90 degrees angle
Associative
Right
Added
Equilateral
49. In order to decimal to a percentage you need to ______ by 100
1/2 (d)^2
Multiply
Factor
Regular polygon
50. The ____________ says y - y1= m(x-x1)
Subtract substitute
((n -2) (180))/n
Point slope formula
Distributive