Math 8 Quiz Review_Term 2

Quiz Review

8 Lessons: Lesson 2-5 to 3-3 of Envision Mathematics 2021 Common Core 8

Second Term

Mathematics 8

1. Compare Proportional Relationships

2. Connect Proportional Relationships

3. Analyze Linear Equations y = mx

4. Understand the y-intercept of a Line

5. Analyze Linear Equations y = mx + b

6. Understand Relations and Functions

7. Connect Representations of Functions

8. Compare Linear and Nonlinear Functions

8 Lessons: Lesson 2-5 to 3-3 of Envision Mathematics 2021 Common Core 8

Lesson Coverage

Lesson 1: Compare Proportional Relationships

Multiple Choice

The table shown relates Petra's earnings to the number of hours she does yard work.

How much will Petra earn per hour?

• $3 per hour

• $15 per hour

• $5 per hour

• $2 per hour

Multiple Choice

Amanda babysits and Petra does yard work on weekends.

The graph relating Amanda's earnings to her number of hours she babysits passes through the points (0,0) and (4,24).

The table shown relates Petra's earnings to the number of hours she does yard work.

Who earns more per hour?

• Petra will earn more than Amanda

• Amanda will earn more than Petra

Multiple Choice

Mara pay $3 per pound for cat food at Pet Palace. The graph represents the cost per pound of food at Mark's Market.

At which store will Mara pay a lower price per pound of dog food?

• Pet Palace

• Mark's Market

Lesson 2: Connect Proportional Relationships

Open Ended

What is a slope?

Multiple Choice

What is the slope of the line?

• The slope of the line is 3

• The slope of the line is 1

• The line has no slope

• The line is vertical

Multiple Choice

What is the slope of the line that is parallel to the x-axis?

• The slope of the line is 0

• The slope of the line is undefined

• The slope of the line is 45 degrees

• The slope of the line is infinite

Multiple Choice

Which of the following graphs has a negative slope?

Multiple Choice

What is the slope of the line if its graph passes through the points (80, 20) and (120, 30)?

• $$\frac{1}{4}$$

• 4

• 10

• 20

Lesson 3: Analyze Linear Equations y=mx

Multiple Choice

What is the slope of the line if its graph passes through the points (80, 20) and (120, 30)?

• $$\frac{1}{4}$$

• 4

• 10

• 20

Multiple Choice

Resting heart rate is a measure of how fast the heart beats when a person is not performing physical activity. The graph shows the number of heartbeats over time for a given person.

Which of the following describes the relationships?

• The heart's resting heart rate is 140 beats each minute.

• The heart's resting heart rate is 90 beats each minute.

• The heart's resting heart rate is 30 beats each minute.

• The heart's resting heart rate is 70 beats each minute.

Multiple Choice

Resting heart rate is a measure of how fast the heart beats when a person is not performing physical activity. The graph shows the number of heartbeats over time for a given person.

What equation describes the relationships?

• y = 70x

• y = 140

• y = 30x + 20

• y = 80x + 30

Multiple Choice

What equation represents the graph?

• y = -3.2x

• y = -4x

• y = 3x

• y = 15x

Draw

Graph the equation $$y\ =\ \frac{1}{2}x$$

Draw

Graph the equation $$y\ =\ -3x$$

Lesson 4: Understand the y-intercept of the line

Multiple Choice

What is the y-intercept in the given graph?

• 16

• -4

• 8

• 5.25

Multiple Choice

What is the y-intercept in the given graph?

• -3

• 1

• 3

• -1.5

Multiple Choice

What is the y-intercept in the given graph?

• -3

• 4

• 3

• -4

Multiple Choice

What is the y-intercept of a graph that passes through the y-axis above the origin?

• positive y

• negative y

• zero

• undefined

Multiple Choice

What is the y-intercept in the equation $$y\ =\ x\ -\ 3$$ ?

• 1

• x

• 3

• -3

Multiple Choice

What is the y-intercept in the equation $$y\ =\ \frac{5}{7}x$$ ?

• 5

• $$\frac{5}{7}$$

• 0

• 7

Lesson 5: Analyze Linear Equation y=mx + b