Math Practice Test Set 4 - My Career Tools

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1. Is the following a function? Explain why or why not.

A.Yes, this does represent a function, because all the points are distinct (none of them are coincident.

B.No, this does not represent a function, since a function can not be made up of only points.

C.No, this does not represent a function, since it fails the vertical line test.

D.No, this does not represent a function, since a function is made up of many more points.

Question 1 of 10

2. 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 2 of 10

3. Given the following set of numbers {1,2,3,4,5,6,7,8,9,10} what is the probability of choosing an even number, given that a multiple of 3 is chosen?

A.\(\frac{1}{2}\)

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

C.0

D.\(\frac{3}{4}\)

Question 3 of 10

Math-Word problems

4. The number −6 is 2 more than an unknown number. Find the unknown number.

A.-8

B.8

C.-4

D.4

Question 4 of 10

5. Two less than eight times an unknown number is −74. Find the unknown number.

A.-9

B.9

C.-18

D.5

Question 5 of 10

Math- Equations

6. Solve the equation.

−7(9x − 6) = 7(5x + 7) – 7

A.0

B.1

C.-1

D.2

Question 6 of 10

Math-Solution of equations

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

−32x + 7y = −238
8x − 4y = 64

A.(7,-2)

B.(7,2)

C.(6,-2)

D.(7,-6)

Question 7 of 10

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

9x − 9y = −63
2x − 6y = −34

A.(-2, 5)

B.(-3, 6)

C.(-2, 7)

D.(-1, 5)

Question 8 of 10

Math-Exponents

9. Simplify the given exponential expression.

\((7s^{6n})^{3}\)

A.\(343s^{18n} \)

B.\(-343s^{18n} \)

C.\(s343^{18n} \)

D.\(343^{18ns} \)

Question 9 of 10

Math-Evaluate expression

10. −6x − 1 at x = 1

A.-7

B.7

C.-6

D.12

Question 10 of 10