Unit 1 Review Expressions and Linear Equations

Unit 1 Test Review

Multiple Choice

Evaluate the expression when y = 5
2y² + 3y

• 75

• 65

• 115

• 105

Multiple Choice

Evaluate the expression when x = 7 and y = 4
xy - 4(2)

• 3

• 20

• 48

Multiple Choice

b² + 4
when b = 3

• 10

• 12

• 13

• 11

Multiple Choice

Evaluate the expression when
x =5    and   z = 4
z²  - 2x

• 6

• 2

• 17

• 26

Multiple Choice

6a + 2(c - b)
when a = 2, b = 1, c = 9

• 4

• -4

• 28

• 8

Multiple Choice

Find the slope of a line that passes through the points (3, -5) and (6, -6)

• -1/3

• -3

• 1/3

• 3

Multiple Choice

Find the slope in simplest form

• 1/2

• -2

• 2

• 4/2

Multiple Choice

Find the slope in simplest form

• I have no clue how to do this

• 1/3

• 3

Fill in the Blank

Write the linear equation using the table provided. (Type without spaces)

Fill in the Blank

Using the following graphing, write a linear equation. (Type without spaces)

Multiple Choice

The table shows the amount of pet food in cups remaining in an automatic feeder as a function of the number of meals the feeder has dispensed. Based on the table, which function models this situation?

• $$f\left(n\right)=-3n+24$$

• $$f\left(n\right)=-\frac{1}{3}n+16$$

• $$f\left(n\right)=-3n+64$$

• $$fn=-\frac{1}{3}n+8$$

Multiple Select

The tabel represents some points on the graph of a linear function. Which equations represent this relationship?

Select TWO correct answers.

• y

Multiple Choice

The table represents some points on the graph of a linear function. Which function represents the same relationship?

• h(x) = -3x - 10.5

• h(x) = -x - 3.5

• h(x) = 3x - 10.5

• h(x) = x - 3.5

Multiple Choice

• $$g\left(x\right)=6x+4$$  

• $$g\left(x\right)=4x-\frac{2}{3}$$  

• $$g\left(x\right)=-\frac{3}{2}x+6$$  

• $$g\left(x\right)=-\frac{2}{3}x+4$$