Quiz about 7.1 & 7.2 y=mx+b

Question 1

The graph represents the linear relationship between the number of books Layla has read and the number of months she has been a member of a book club. (7.4A)

Accepted Answer

Layla has read 2 books in the first 3 months she was a member of the book club.

Answer

Layla has read 3 books in the first 2 months she was a member of the book club.

Answer

Layla has read 3 books in the first 4 months she was a member of the book club.

Answer

Layla has read 4 books in the first 3 months she was a member of the book club.

Question 2

A dolphin travels through the water of a speed of 25 kilometers per hour. Which representation shows the distance a dolphin can travel at this rate? (7.4A)

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 3

Cheddar cheese costs $4.25 per pound. Which equation best represents y, the total cost of x pounds of cheddar cheese?

Accepted Answer

y = 4.25x

Answer

x = 4.25 + y

Answer

x = 4.25y

Answer

y = 4.25 + x

Question 4

A fish is swimming at a constant rate toward the ocean floor. The equation y = -7x -3 can be used to represent this situation, where y is the depth of the fish in meters below sea level and x is the number of seconds the fish has been swimming.

Which statement best describes the depth of this fish, given this equation? (7.7A)

Accepted Answer

From a starting position of 3 meters below sea level, the fish is descending 7 meters per second

Answer

From a starting position of 7 meters below sea level, the fish is descending 3 meters per second

Answer

From a starting position of 7 meters below sea level, the fish is ascending 3 meters per second

Answer

From a starting position of 3 meters below sea level, the fish is ascending 7 meters per second

Question 5

The table shows the relationship between y, the cost to rent a boat, and x, the amount of time the boat is rented. Which graph best represents the relationship between x and y shown in the table? (7.7A)

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 6

Which equation best represents the relationship between x and y in the graph? (7.7A)

Accepted Answer

y = 2x + 4

Answer

y = 2x - 2

Answer

y = 1/2x + 4

Answer

y = 1/2x - 4

Question 7

Which table contains only values that satisfy the equation

y = 0.5x + 14?

Accepted Answer

Option C is correct

Answer

A.

Answer

B.

Answer

D.

Question 8

A store sells new video games for $55 each. Used video games sell for $12 each. Jacob is buying 3 new video games and x used video games. Which equation can be used to find y, the total price Jacob must pay in dollars? (7.4A)

Accepted Answer

y = 12x + 165

Answer

y = 12x + 55

Answer

y = 55x + 12

Answer

y = 165x + 12

Question 9

Question 9.

Accepted Answer

J

Answer

F

Answer

G

Answer

H

Question 10

Question 10.

Accepted Answer

G

Answer

F

Answer

H

Answer

J

Question 11

Which of these does NOT represent the distance a car travels when going 50 miles per hour?

Accepted Answer

In 3 hours a car will travel a distance of 200 miles.

Answer

d = 50t, where d represents distance and t represents time in hours

Answer

B.

Answer

D.

Question 12

Felicia's cell phone plan costs $36 per month. Which table show the sum of the amounts that Felicia will pay for her cell phone plan over the next 4 months?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 13

Which equation best represents the relationship in this table?

Accepted Answer

y = x + 9.6

Answer

y = 9.6x

Answer

y = 10.6x

Answer

y = 9.6

Question 14

Which scenario can be used to describe this relationship:

y = 60x

Accepted Answer

For every 6 hours, there are 360 minutes.

Answer

Gabby is 60 centimeters taller than her sister.

Answer

Ms. McManus got 60 more likes on her Instagram post this week than she did last week.

Answer

Mr. Lara ate 60 bags of Takis every two days while on vacation.

Question 15

Which equation best represents the relationship on this table?

Accepted Answer

y = x + 4

Answer

y = 3x

Answer

y = x + 3

Answer

y = 4x

Question 16

Carlos receives $8.50 each week for allowance. Which equation can be used to find w, the number of weeks Carlos must save his allowance in order to buy a calculator that costs c, dollars?