Question

The graph shows the relationship between hours worked and total earnings for a store clerk. Let h represent hours worked and e represent total earnings. Which equation models the relationship between the independent and dependent variables?

A) e =
7.5
h
B) h =
e
7.5
C) e = 7.5h
D) h = 7.5e

Answer 1

The answer is C.

Explanation:

y = kx → e =

30

4

h → e = 7.5h

The independent variable is hours worked, h, and the dependent variable is total earnings, e. The independent variable is the input value of a function. The dependent variable is the output value of a function.