Unit 4 Review

Question 1

A hot air balloon is approximately 12 feet above the ground. The hot air balloon begins rising at an average rate of 3.5 feet per minute. Write a function that can be used to find the height of the hot air balloon after x minutes?

Fill in the FIRST blank below.

y = ________x + _______

Question 1

A hot air balloon is approximately 12 feet above the ground. The hot air balloon begins rising at an average rate of 3.5 feet per minute. Write a function that can be used to find the height of the hot air balloon after x minutes?

Fill in the SECOND blank below.

y = ________x + _______

Question 2

The table represents some points on the graph of a linear function. 

 Which equation represents the same relationship?

Select two correct answers.

Question 3

The table below shows corresponding x and y values.

Which equation best represents the relationship in this table?

• 7x + 3y = 8

• 7y + 3x = 8

• 7y + 3x = 48

• 7x + 3y = 48

Question 4

The graph of a linear function is shown on the grid.

 Which equation best represented by this graph?

Question 5

A line is graphed on a coordinate grid.

• The equation of the line is y = 3, and the slope is 0.

• The equation of the line is x = 3, and the slope is undefined.

• The equation of the line is x = 3, and the slope is 0.

• The equation of the line is y = 3, and the slope is undefined.

Question 6

The graph of a linear function is shown on the coordinate plane.

Which function best describes the relationship shown in the grid?

Question 7

What is the equation of a line that passes through the points (-5, -2) and (10, -14)?

Select two correct answers.

• 4x + 5y = -5

• 4x + 5y = -30

• 5x - 2y = -34

• 5x - 2y = -28

• 5x - 2y = -4

• 5x - 2y = 8

Question 9

Two points are plotted on the grid.

Which equation in slope-intercept form best represents the line that passes through these two points?

• y = x - 4

• y = -2x + 1

• y = x - 2

• y = -4x + 1