Math Practice Test Set 8 - My Career Tools

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1. $\frac{x-y}{x^{2}-2xy+y^{2}}$

Simplify.

A.x + y

B.xy

C.$\frac{1}{x} - y$

D.x - y

Question 1 of 10

2. If x and y vary inversely, as y increases, what happens to the value of x?

A.Increases

B.Decreases

C.Stays the same

Question 2 of 10

3. Typically, air temperature decreases through the night between midnight and 6:00 am. This is an example of what type of association?

A.constant association

B.positive linear association

C.negative linear association

D.no association

Question 3 of 10

4. The graph below shows a function.

A.True

B.False

Question 4 of 10

Math-Solution of equations

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

2x + 2y = 4
3x − 5y = 3

A.$(\frac{13}{8}, \frac{3}{8}) $

B.$-(\frac{13}{8}, \frac{3}{8}) $

C.$(\frac{13}{9}, \frac{3}{9}) $

D.$-(\frac{13}{9}, \frac{3}{8}) $

Question 5 of 10

6. 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 6 of 10

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

16x − 16y = −256
−8x + 8y = 128

A.Infinite number of solutions

B.no solutions

C.0

D.1

Question 7 of 10

Math-Percent of number

8. 27 is what percent of 45?

A.60

B.0.6

C.30

D.45

Question 8 of 10

Math-Evaluate expression

9. Simplify the given expression.

$-(-2)^{5}$

A.32

B.-32

C.16

D.-16

Question 9 of 10

Math-Word problems

10. 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 10 of 10