Question

The function f(x) = 60 + 10x represents a test score, f(x), of a student studying x hours for a test. The student studies for no more than 3 hours. What is the range of the function?

Answer 1

(0,90)

Explanation:

Given data

The function f(x) = 60 + 10x

x= 3 hours

The range is a set of values for f(x) for a corresponding value value for x

f(3) = 60 + 10(3)

f(3) = 60 + 30

f(3) = 90

We can say the domain of her study time is between (0,3) hours

While the Test score is in the range (0,90)