Unit 7 Review

What is the range of the function shown in the graph below?

• y ≠ -3

• x ≠ -3

• x ≠ -4

• y ≥ -3

• x = 8

• x = 6

• x = 10

• x = 12

• x = 7, x = 4 is an extraneous solution

• x = 2, x = 7 is an extraneous solution

• x = 7, x = 2 is an extraneous solution

• x = 7, x = 5 is an extraneous solution

When building a house, the number of days required to build is inversely proportional to the number of workers. One house was built in 140 days by 6 workers. Which equation represents the scenario above?

What is the domain of the function shown in the graph below?

• x ≠ 2

• y ≠ 2

• y ≥ 2

• x ≥ 2

• x = 2

• x = 1

• x = 4

• x = 0

What is the domain of the function shown in the graph below?

• x ≥ -4

• y ≠ 0

• x ≤ -4

• x ≥ 0

• y = -4

• x = 1

• x = -4

• x = 2

What is the range of the function shown in the graph below?

• y ≠ 1

• x ≠ -5

• y ≠ -5

• x ≤ 1

Anand buys 6 bottles of cranberry juice at the corner store for a total cost of $3.66. The cost varies directly with the number of bottles. Which equation represents the scenario above?