Which set contains the only ordered pairs that satisfy $$y=3x+7$$ .

$$\left(3,16\right)$$ and $$\left(5,22\right)$$

$$\left(2,13\right)$$ and $$\left(4,18\right)$$

$$\left(4,19\right)$$ and $$\left(6,24\right)$$

$$\left(5,22\right)$$ and $$\left(7,27\right)$$

Function P is represented as $$y=\frac{1}{2}x+4$$ . Function Q is shown in the graph. Which statement is correct?

The slope of function Q is 2 times the slope of function P.

The slope of function Q is 1/2 times the slope of Function P

The slope of function Q is 1 more than the slope of function P.

The slope of function Q is 3/2 more than the slope of function P,

Consider the two linear functions given. What is the relationship between the y-intercepts of Function 1 and Function 2?

The y-intercept of Function 1 is 19 less than that of Function 2.

The y-intercept of Function 1 is 4 less than that of Function 2.

The y-intercept of Function 2 is 9 more than that of Function 1.

The y-intercept of Function 2 is 24 more than that of Function 1.

Line 1 has points located at (4, -2) and (9,0). Line 2 is represented by the equation $$y=-\frac{5}{2}x+5$$ . Which statement about rate of change is correct.

Line 2 has a greater rate of change equal to -5/2.

Line 1 has a greater rate of change equal to 2/5.

Line 1 has a greater rate of change equal to -5/2.

Line 2 has a greater rate of change equal to 2/5.

Which statement is correct?

Function C has a smaller y-intercept than Function A.

Function C has a smaller y-intercept than Function B.

Function B has a greater y-intercept than Function D.

Function B has a greater y-intercept than Function C.

Line n goes through the points given in the table. Line HK is represented by the equation $$y=\frac{2}{3}x+4$$ . Between line HK and line n, which has a greater rate of change, and why?

Line n has a greater rate of change because $$\frac{7}{4}>\frac{2}{3}$$ .

Line n has a greater rate of change because $$\frac{4}{7}>\frac{2}{3}$$ .

Line HK has a greater rate of change because $$\frac{4}{7}

Line HK has a greater rate of change because $$\frac{7}{4}>\frac{2}{3}$$ .

Study the graph of the function. Which statement describes the function in the graph?

The function is linear with a negative slope.

The function is linear with a y-intercept of 6.

The function is linear with a positive slope.

The graph shows a jogger’s progress during a workout. The jogger runs a total distance of 3 miles, and the complete workout lasts 25 minutes. Which statement is true?

The jogger moves for only 19 minutes of the workout because the graph shows no changes in distance from minutes 7 - 9, 12 - 14, and 17 - 19.

The jogger moves at a constant rate of 1 mile every 9 minutes during the first 9 minutes of the workout.

The jogger moves at a faster rate during the first 5 minutes of the workout than at any other time.

The jogger moves for only 19 minutes of the workout because the graph shows no changes in distance from minutes 0 - 7, 9 - 12, 14 - 17, and 19 - 25.

Match each question to the description shown. Use the information given to answer the questions. Answers may be used more than once. The height of a burning candle can be modeled using the linear equation $$h=30-\frac{1}{24}t$$ , where t represents time, in minutes, and h represents the candle’s height, in centimeters. What is the meaning of the y-intercept? What is the meaning of the slope?

Original height of the candle in centimeters

Change in the height of the candle in cm per min.

Height of the candle in cm after 30 minutes

Time it takes for the candle to reach 0 cm

Time it takes for the candle to reach 30 cm

Researchers conduct a study and use the equation $$h=0.2d+0.4$$ to model the height, h, in inches, of bean plants after d days. Which statement about the slope is true?

Every day the bean plant grown an average of 0.2 inch per day.

Every 0.2 day the bean plant grows an average of 1 inch per day.

Every 0.4 day the bean plant grows an average of 1 inch per day.

Every day the bean plant grown an average of 0.4 inch per day.

8th Grade Math Chapter 6 Practice Test

Quiz

•

Mathematics

•

8th Grade

•

Practice Problem

•

Hard

•

CCSS

8.F.A.2, 8.F.A.1, 8.F.A.3

+6

Standards-aligned

Andrew Holt

Used 2+ times

FREE Resource

25 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following graphs is NOT a function.

2.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

Five different relationships between x and y are shown. Select all of the relationships that are functions.

Tags

CCSS.8.F.A.1

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which relation is below is not a function?

Tags

CCSS.8.F.A.1

4.

CATEGORIZE QUESTION

3 mins • 1 pt

Indicate whether or not each set of ordered pairs represents a function.

Groups:

(a) Function

,

(b) Not a Function

Tags

CCSS.8.F.A.1

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The values in the table are from the graph of a function. Which function matches the coordinates in the table?

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

The table lists points included on the graph of a function. Which graph corresponds to the values listed in the table?

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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