8th Grade Review

Level 3

Solve for w

• w = 2

• w = 4

• w = 6

• w = 8

7k - 14 = 42

• 7

• -8

• 0

• 8

6 ( 2n + 5 ) = 66

• x = 3

• x = 5.08

• x = 8

• x = 432

3x + 2(4x - 4) = 3

• x = 4

• x = 3

• x = 2

• x = 1

What is the simplified form of this expression
3x+4+5x+3

• 15x
• 8x+7
• 7x+8

Simplify the Expression. 
9z  - 21 - 3z + 10

• Simplified
• 9z - 21 - 7
• 9z - 11 -3z
• 6z - 11

Is this function linear or nonlinear?

• linear

• nonlinear

Why is this function linear?

• This is a linear function because the y-intercept is (0,2)
• This is a linear function because it forms a curved line.
• This is a linear function because is does not have a constant rate of change.
• This is a linear function because is has a constant rate of change.

Which answer choice is true?

• The table represents a linear function because there is a pattern for the x-coordinates and y-coordinates.
• The table represents a linear function because the ratio of the change in the y value and the change in the x value is constant.
• The table represents a nonlinear function because the ratio of the change in the y value and the change in the x value is not constant.
• The table does not represent a function because there is more than one output for at least one input.

Find the slope of the line.

• -2
• 2
• -1
• 1