Pablo is making ramps of different lengths. The ramps are made with rectangular and square wooden boards. The relationship between the length of the ramp in feet, f(n), and the number of square boards used, n, is represented by the function below.

f(n) = 20n + 3 , where 2 ≤ n ≤ 6

Which statement is correct about the range of the length of the ramp for the given domain?
Answer
It varies from 2 to 6.
It varies from 43 to 123.
It varies from 40 to 120.
It varies from 2 to 123.

Question

Pablo is making ramps of different lengths. The ramps are made with rectangular and square wooden boards. The relationship between the length of the ramp in feet, f(n), and the number of square boards used, n, is represented by the function below.

f(n) = 20n + 3 , where 2 ≤ n ≤ 6

Which statement is correct about the range of the length of the ramp for the given domain?
Answer
		It varies from 2 to 6.
		It varies from 43 to 123.
		It varies from 40 to 120.
		It varies from 2 to 123.

accessdenied · Answer

The range is just the values that f(n) takes given the domain
if you test the ends of the domain in the function (n=2 and n=6), you should get the boundaries of the range (its a linear function, so you won't miss any values larger than f(6) or smaller than f(2) in that interval)