Math Test Set 11

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1. Factor \(9x^{2}− 13x − 10\)

A.(3x + 5)(3x - 2)

B.(3x − 2)(3x + 5)

C.(9x + 5)(x − 2)

D.(9x + 10)(x − 1)

Question 1 of 10

2. If y varies inversely with x, and y = 40 when x = 16, find x when y = -5.

A.127

B.128

C.-128

D.-127

Question 2 of 10

3. Given two polygons, the first one having more sides than the second, let the following rule describe how to map the first polygon to the second polygon. (To help illustrate, refer to the two polygons pictured below.) Label the vertices of each polygon A, B, C, etc. Then, each vertex of polygon 1 is mapped to its corresponding vertex on polygon 2 (A to A, B to B, etc.). For all extra vertices of the first polygon (in this case G and H), they map to the final vertex of the second polygon (in this case to F). Is this rule a function? If not, why not?

A.Yes, this is a function.

B.No, functions relate only to equations and graphs.

C.No, because multiple vertices of the first polygon are mapped to the same vertex on the second polygon, which is the same as failing the vertical line test.

D.No, because this is not continuous; there is only a finite set of points, while functions (graphs) are an infinite set of points.

Question 3 of 10

Math-Solution of equations

4. Use the elimination method to solve each of the following systems.

x − 4y = −37
2x − 8y = 54

A.No solutions

B.inifinite number of solutions

C.128

D.-128

Question 4 of 10

5. Which of the points (1, −1), (−2, 20), (−4, 31), and (−9, 64) is a solution of the equation y = −6x + 7?

A.(−4, 31)

B.(−2, 20)

C.(1, −1)

D.(−9, 64)

Question 5 of 10

Math- Equations

6. Solve the equation.

2x − 2(4 − 9x) = 8(6x + 2)

A.\(-\frac{6}{7}\)

B.\(\frac{7}{6}\)

C.\(-\frac{7}{6}\)

D.\(\frac{12}{14}\)

Question 6 of 10

Math-Word problems

7. A student’s bank account is overdrawn. After making a deposit of $360, he finds that his account is still overdrawn by an amount of $90. What was his balance before he made his deposit?

A.−$450

B.$450

C.$500

D.−$500

Question 7 of 10

Math-Functions

8. Given f(x) = 3x⁴ − 5x² + 8, evaluate f(−1).

A.6

B.-6

C.5

D.12

Question 8 of 10

Math-Distributive Property

9. Use the distributive property to expand the given expression.

\(9(−2b^{2} + 2b + 9)\)

A.\(−18b^{2} + 18b + 81 \)

B.\(18b^{2} + 18b + 81 \)

C.\(-18b^{2} - 18b + 81 \)

D.\(-18b^{2} + 18b + 21 \)

Question 9 of 10

Math-Slope

10. Calculate the slope of the line passing through the points P and Q. Be sure to reduce your answer to lowest terms.

P(0, 11), Q(16,−11)

A.\(-\frac{11}{8}\)

B.\(1\frac{3}{8}\)

C.\(\frac{11}{8}\)

D.\(\frac{8}{11}\)

Question 10 of 10

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