Unit 5 Test Review

Warm Up

​Be Prepared!

We are reviewing for the Unit 5 Test during class today!
Have a calculator ready
Something to write on & with
Be ready to answer and ask questions!

Unit 5 Review
Linear Relationships & Functions

Today, you will complete a test on linear relationships & functions

Hotspot

Bianca labeled the following on the graph below: Origin, x-intercept, y-axis, (1,3), and (4,0). She made some errors. Which key information did she label incorrectly?

Match

The graph represents how many liters of water a fish tank holds over the course of 8 minutes. Match the description with the correct term. At the beginning of the 8 minutes, the tank held 40 liters of water. At the end of the 8 minutes, the tank had 0 liters of water. After 4 minutes, the tank had 20 liters of water.

• Y-intercept

• X-intercept

• (4,20)

At the beginning of the 8 minutes, the tank held 40 liters of water.

At the end of the 8 minutes, the tank had 0 liters of water.

After 4 minutes, the tank had 20 liters of water.

• At the beginning of the 8 minutes, the tank held 40 liters of water.

• At the end of the 8 minutes, the tank had 0 liters of water.

• After 4 minutes, the tank had 20 liters of water.

Multiple Choice

What y-values correspond to the given x-values?

Use the mapping list to fill in the table.

• The y-values in the table should be 5, 7, 7, 9.

• The y-values in the table should be 5, 5, 9, 7.

• The y-values in the table should be 5, 7, 5, 9.

• The y-values in the table should be 5, 9, 7, 5.

Dropdown

Determine if the mapping, table, and graph below represents a function.



Mapping is​

Select answer

Graph is​

Select answer

Table is ​

Select answer

Multiple Select

Which values are a part of the domain? Select all that apply.

• -4

• -2

• -5

• 0

Multiple Choice

What mistake did Nora make in solving the function f(x) = 5x - 2 for f(3).

3 = 5x - 2

• Nora forgot to submit her assignment on time.

• Nora made a calculation error.

• Nora did not distribute properly.

• Nora put the 3 in for f(x). She should have placed 3 for x.

Math Response

Evaluate f(2) using f(x) = 5x - 2

Type answer here

Correct Answer: 8

Deg^°

Rad

Hotspot

Which table represents the function f(x) = -2x + 10?

Hotspot

Which graph represents the function f(x) = -2x + 10?

Multiple Select

Which equations represent linear functions?

• f(x) = -4 + 3x

• h(x) = 6(x -1)

• g(x) = $$x^2+8$$

• j(x) = $$\sqrt[]{5x}$$

Match

Match the lines to their slopes.

• undefined

• 0

• 3/5

• -1/8

Line a

Line b

Line c

Line d

• Line a

• Line b

• Line c

• Line d

Draw

A line passes through the following two points:

(-6, 4)

(8, -2)

If i(-6, 4) is (x1, y1) and (8, -2) is (x2, y2) then what is the correct slope formula?

Multiple Choice

A scuba diver is diving down to a coral reef. After 20 seconds, he is 60 feet below the surface of the water. After 50 seconds, he is 150 feet below the surface of the water. The data for time and distance is shown in the table below. What is the rate of change of the diver?

• 4 feet per second

• 3 feet per second

• 11 feet per second

Match

The following ratios represent how quickly money is growing in a savings account. Match each ratio with the correct rate of change.

• 195 dollars, 15 weeks

• 60 dollars, 5 weeks

• 180 dollars, 6 weeks

13 dollars a week

12 dollars a week

30 dollars a week

• 13 dollars a week

• 12 dollars a week

• 30 dollars a week

Multiple Select

Which statements are true about the line pairs?

• Line a and Line b have the same y-intercepts

• The equation for Line c is

  y = $$\frac{2}{3}$$ x + 1

• Line b and Line c have different slopes

• The equation for Line a is y = 3x + 3

Multiple Choice

What is the x-intercept of 10x + 5y = 40?

• (4, 0)

• (0, 8)

• (8, 0)

• (0, 4)

Match

Match each description with the correct equation of the line.

• X = 1

• Y = 1

• Y = 3

• X = 3

the line passes through (1, 1) and (1, 4)

a horizontal line with a y-intercept at (0, 1)

a line passes through (1, 3) and (5, 3)

a vertical line with an x-intercept at (3, 0)

• the line passes through (1, 1) and (1, 4)

• a horizontal line with a y-intercept at (0, 1)

• a line passes through (1, 3) and (5, 3)

• a vertical line with an x-intercept at (3, 0)

Multiple Choice

What is the constant of proportionality for the graph below?

• 10

• 8

• 1.25

• 0.8