What one is a linear function

C

Step-by-step explanation:

A linear function will have a constant rate of change. The rate of change (or slope) for C is -3. All the other graphs do not have a constant rate of change. As in the difference between each value was different.

a. -0.3 > -0.33

46

step-by-step explanation:

given

height = 168 cm

formula

height =2.47*f+54.13

solution

168 = 2.47f + 54.13             subtract 54.13 from both sides

168 - 54.13   = 2.47f             combine

113.87 = 2.47f                     divide by 2.47

113.87 / 2.47 = f                   combine

46.1 = f  

answer: 46 cm