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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
(4ac - b^2)/4a
Consecutive angles
Altitude
Y
2. What is the volume of a sphere with a radius r
1/2h (b1 + b2)
4/3 pi r^3
((n -2) (180))/n
Isosceles
3. A triangle with one obtuse angle (angle greater than 90 degrees) is
Plane
4/3 pi r^3
Secant
Obtuse
4. In a quadratic formula if the a value of the parabola is less than 0 the parabola opens ___________
1/3Bh
Factoral
Downward
2
5. What is the area of a pyramid or cone (hint B= area of Base)
Congruence
Added
1/3Bh
Commutative
6. The sum of the interior angles of a triangle = ___________
1/3 pi r^2 h
Altitude
Distributive
180
7. In the law of proportion if a/b = c/d then b/a =
Downward
Obtuse angle
D/c
A+b
8. What type of trapezoid has its non parallel sides equal
Size
1/2bh
Isosceles
Hyotenuse
9. The _______says for every reals number a - for every real number b and for every real number c - a(b+c) = ab + ac
Distributive
Y
Parallelogram
180
10. A __________of a circle is a line segment drawn from the center of the circle to any point on the circle
Square
Equiangular polygon
Radius
Bisect
11. Two distinct straight lines can intersect at most at only one point
Slope
Straight line
One
Subtract substitute
12. When calculating the probability of mutually exclusive event y (can not occur simultaniously) you need to ______their seperate probabilities (uses the word 'or')
Equal
Added
Reflex
A+b
13. What is the formula for a combination (where order matters)
N!/(r!(n - r)!)
Every
Acute
Polygon
14. 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)
Downward
Ratio
Bisect
Hyperbola
15. An angle whose measure is greater than 180 degrees and less than 360 degrees
Reflex
Obtuse angle
Linear substitute
Acute
16. Use ____________= 1/2a X p (where a = apothem and p = the perimeter)
Area of a polygon
A^3
x
Complimentary
17. The __________ of a regular polygon is the segment joining an vertex with the center of the polygon
Distance between 2 points
Radius
Hyperbola
1
18. If a triangle has two congruent sides then it is an _________triangle
Isosceles
Factoral
Plane
Triangle
19. In a function the x value is the ___________variable
Ratio
Median
Dependent
Linear substitute
20. The volume of a cube is
Bisector
A^3
Congruence
Regular polygon
21. What is the closure property of addition - for every real number a - for every real number b ______________ is a real number
Reflexive
Isosceles
Chord
A+b
22. Every real number is a ______________
Complex
Ellipse
Rhomus
Y
23. How do you calculate the area of a parallelogram - what is the formula
Positive
Every
Bh
Distance between 2 points
24. Two lines are said to be ______________ if they intersect and form right angles
Ellipse
Ax+ by = c
Perpendicular
Equilateral polygon
25. The perimeter of two similar polygons have the same ratio as the measure of any pair of corresponding line segments of the polygon
Polygon
Ratio
Exponent
n
26. That points of intersection on a triangle are called its _____________
Plane
6a^2
Parabola
Vertices
27. The square of a real number cannot be ___________
Negative
Congruence
1
Circumscribed circle
28. How do you calculate the area of a trapezoid (hint h= altitude - perpendicular segment)
1/2h (b1 + b2)
Pi(d) 2(pi)r
Collinear
Extranous excluded
29. The __________property of additon says that fro every real number a - ther is a real number such that a + - a = - a+ a = 0
Inverse
(c - d)/d
Angle
S^2
30. If all points lie in the same plane they are __________
Slope
Multiply
Coplanar
Acute
31. An angle whose measure is 180 degrees
Median
Supplementary
Straight
Adjacent
32. If a=0 in a quadratic formula - the quadratic is reduced to a linear function and a ____________
Subtract substitute
Straight line
Y
Inverse
33. The __________of a triangle is a line segment from a vertex of the triangle perpendicular to the opposite side
Altitude
Adjacent
Point slope formula
Distance between 2 points
34. What is the surface area of a sphere with a radius r
Every
4pi r^2
Isosceles
Collinear
35. An angle whose measure is 90 degrees
Complex
Congruence
Exterior angle
Right angle
36. A __________________ is a circle passing through all the vertices of a polygon
A(bc)
Multiply
Reflex
Circumscribed circle
37. When proving 2 polygons are similar - what is the formula you use (hint: n= the number of sides)
Associative
((n -2) (180))/n
Arc
Commutative
38. 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
Isosceles
Complimentary
Linear substitute
Bisect
39. When calculating the probability of independent events you need to __________ (words like and &' followed by' )
Roots
Congruence
Multiply
Straight
40. Distance from a ___________ to a _________ is the measure of the perpendicular line segment from the point to that line
Point line
Angle
1/3 pi r^2 h
(4ac - b^2)/4a
41. What is the formula for a square if you only know the length of the diaganol
Quadratic formula
1/2 (d)^2
0
Central angle
42. A line that joins the midpoint of two sides of a triangle is called the__________
Mildline
Quadratic formula
Side square root
Parallelogram
43. The __________property of multiplicaiton for every real numver a - for every real number b ab= ba
Commutative
Congruence
Parallelogram
S^2
44. The ____________ says y - y1= m(x-x1)
Point slope formula
A+b
Perpendicular
Acute
45. i^2 = _____________
Commutative
Complimentary
1
Complex
46. Log base b to the b = ____________
Acute
Line
1
Ratio
47. A ___________is a figure with the same number of sides as angles
Multiply
Exponent
Polygon
Pi(d) 2(pi)r
48. To find the x intersept we need to make __________= 0
Ratio
Point slope formula
Y
Quadratic formula
49. 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)
S^2
Distance between 2 points
Complex
Addition subtration
50. _____________ of angles is an equivalance relation - it is reflexive - symmetric and transitive
1/2h (b1 + b2)
Transitive
Size
Congruence