The table gives the number of hours, $h$, of labor and a plumber's to…

Question

Prompt

The table gives the number of hours,

h

, of labor and a plumber's total charge

f (h)

dollars, for two different jobs. There is a linear relationship between

h

and

f (h)

. Which equation represents this relationship?

f (h) = 85 h + 55

f (h) = 55 h

f (h) = 110 h + 30

f (h) = 30 h + 110