9cd Graph Linear Equations 8th Grade

A wheelchair ramp runs 28 inches and rises 7 inches. What is the rate of change?

• 4

• 1/4

• 21

• 35

Answer explanation

rise over run

A wheelchair ramp runs 40 inches and rises 80 inches. What is the rate of change?

• 4

• 1/2

• 2

• 3

Answer explanation

rise over run

Find the slope of LM

• 1/2

• -1/2

• -2

• 2

What is the slope of AC?

• 0

• Undefined

• 1

• -1

What is the slope of CD?

• 1

• Undefined

• 2

• 3

Answer explanation

2/2=1

Which situation relates to the graph?

• Jake has 4 comic books in his collection, and each new comic book costs an additional $10.

• Jake has 0 comic books in his collection, and each new comic book costs an additional $10.

• Jake has 10 comic books in his collection, and each new comic book costs an additional $1.

• Jake has 10 comic books in his collection, and each new comic book costs an additional $4.

The graph shows the population growth of a school from year to year. What is the rate of change in terms of number of students per year?

• 400 students per year

• 100 students per year

• 2 students per year

• 200 students per year

Answer explanation

rise over run

Line N is NOT a function. The equation of line N could be

• X=2

• X-3=0

• y=4

• y-2=0

Line N is a function. The equation of line N could be

• X=2

• X-3=0

• y=4

• y-2=0

The function shown in the graph is

• f(x) = 2x - 0.5

• f(x) = 2x - 1

• f(x) = x - 0.5

• f(x) = x - 1