Math Practice Test Set 9 - 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. The graph of this data would most resemble which of the following types of graphs?

A.positive linear

B.negative linear

C.constant linear

D.none of the above

Question 2 of 10

3. Janet, Cam, and Mike arrive at a school party and there are only four cupcakes left. Everyone else has eaten enough cupcakes and will eat no more. Below is table of all possible ways these four cupcakes could be eaten by these three people. How likely it is that Janet will eat more cupcakes than Cam and Mike, given that before Janet gets to the cupcake table, Cam and Mike have already each eaten a cupcake?

A.\(\frac{4}{15}\), because there are only four possible scenarios in which Janet eats more cupcakes out of the total 15 possibilities.

B.\(\frac{3}{14}\), since for row 1, neither Cam nor Mike has had a cupcake.

C.\(\frac{1}{12}\), because rows 1-3 don't count, as they have Mike and Cam eating only one cupcake between them (and two need to have been already eaten).

D.\(\frac{1}{6}\), since rows 1-5, 7, 8, 11, 12 aren't included as they don't have Cam and Mike as having eaten at least one cupcake each.

Question 3 of 10

Math-Solution of equations

4. 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 4 of 10

Math-Percent to decimal

5. Convert the given decimal to a percent.

8.7

A.870%

B.87%

C.8.7%

D.0.87%

Question 5 of 10

Math-Evaluate expression

6. Simplify the given expression.

\(-(-2)^{5}\)

A.32

B.-32

C.16

D.-16

Question 6 of 10

7. Evaluate the expression at the given values of x and y.

\(-5x^{2} - 3xy + 5y^{2}\) at \(x = -1\) and \(y = -2\)

A.9

B.-9

C.18

D.-4

Question 7 of 10

Math-Inequalities

8. Solve the given inequality.

2x − 9 ≥ 5 − 8x

A.\(\frac{7}{5}\)

B.\(\frac{5}{7}\)

C.\(\frac{14}{10}\)

D.\(\frac{10}{14}\)

Question 8 of 10

Math- Equations

9. Solve the given equation for x.

−4x − 4 = 16

A.−5

B.−6

C.5

D.10

Question 9 of 10

Math-Square Roots

10. List all square roots of the given number. If the number has no square roots, choose “none”.

144

A.12, -12

B.10, -10

C.11, 12

D.-12, -10

Question 10 of 10