Math Test Set 12 - My Career Tools

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1. For the function graphed below, where is its output greater than 1? Assume 1 unit intervals for both axes.

A.x > 0

B.−∞ < x < ∞

C.y > 0

D.y > 2

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

Math- Equations

3. Solve the equation.

3(5x − 6) − 7(7x + 9) = 3

A.\(-\frac{42}{17}\)

B.\(-\frac{17}{42}\)

C.\(\frac{34}{84}\)

D.\(\frac{42}{18}\)

Question 3 of 10

4. Solve the equation.

−5(−9x + 7) + 7 = −(−9x − 8)

A.1

B.0

C.-1

D.8

Question 4 of 10

Math-Solution of equations

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

2x − 7y = −2
7x + 6y = 3

A.\((\frac{9}{61}, \frac{20}{61})\)

B.\(-(\frac{9}{61}, \frac{20}{61})\)

C.\((\frac{9}{61}, \frac{-20}{61}) \)

D.\((\frac{9}{81}, \frac{-20}{62}) \)

Question 5 of 10

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

x + 8y = 41
−5x − 9y = −50

A.(1, 5)

B.- (1, 5)

C.1 (1, 5)

D.(1, - 5)

Question 6 of 10

7. Determine k so that the point (k, 1) is a solution of y = 4x + 8.

A.\(k = \frac{-7}{4} \)

B.\(k = \frac{-7}{-4} \)

C.\(k = \frac{7}{-4} \)

D.\(k = \frac{7}{4} \)

Question 7 of 10

Math-Slope

8. Use the substitution method to solve each of the following systems.

−7x + 7y = 63

y = 6 − 2x

A.(-1, 8)

B.-(1,8)

C.(1.6)

D.(2,16)

Question 8 of 10

Math-Percent of number

9. 7.2 is what percent of 16?

A.45

B.50

C.90

D.22

Question 9 of 10

Math-Functions

10. Given f(x) = \(-2x^{3}\) + 4x − 9, evaluate f(2).

A.-17

B.17

C.-20

D.8

Question 10 of 10