Math Test Set 11

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1. Using the function graphed below (assuming the horizontal axis represents x and the vertical axis represents y), fill in the missing value in the corresponding table. Assume the horizontal axis represents x, and the vertical axis represents f(x).

A.2

B.3

C.4

D.5

Question 1 of 10

2. Factor the expression. \(9x^{2} + 24x + 16\)

A.\((x + 4)(9x − 1)\)

B.\((3x + 16)(3x + 1)\)

C.\((3x + 4)^{2}\)

D.\((3x + 8)^{2}\)

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

4. \(\frac{7x^{2}-63}{x+3}\)

Simplify the expression.

A.\(\frac{x+3}{7}, x ≠ - 3\)

B.\(\frac{7x^{2}-9}{x},x ≠ - 3\)

C.7(x+3), x ≠ - 3

D.7(x-3), x ≠ - 3

Question 4 of 10

5. Factor thew expression \(x^{2} - 144\)

A.(x + 12)(x + 12)

B.\((x + 12)^{2}\)

C.(x - 12) (x + 12)

D.\((x - 12)^{2}\)

Question 5 of 10

Math-Solution of equations

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

x + 7y = −32
−8x − 56y = 256

A.Infinite number of solutions

B.0

C.1

D.no solutions

Question 6 of 10

Math-Evaluate expression

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

|x − y| at x = 4 and y = 4

A.0

B.1

C.-1

D.2

Question 7 of 10

Math-Exponents

8. Simplify the given exponential expression.

\(4^{n} \cdot 4^{8n+3}\)

A.\(4^{9n+3} \)

B.\(-4^{9n+3} \)

C.\(4^{9n-3} \)

D.\(-4^{9n-3} \)

Question 8 of 10

Math-Combining Like Terms

9. Combine like terms by first using the distributive property.

\(17xy^{2}+ 18xy^{2} + 20xy^{2}\)

A.\(55xy^{2} \)

B.\(-55xy^{2} \)

C.\(5xy^{2} \)

D.\(50xy^{2} \)

Question 9 of 10

Math- Equations

10. Solve the equation.

−7(9x − 6) = 7(5x + 7) – 7

A.0

B.1

C.-1

D.2

Question 10 of 10

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