Answer:
THE ANSWER FROM YOUR OPTIONS IS:
(C) The repair charge r depends on the repair time h in hours.
Step-by-step explanation:
Repair-service call - $75 /hour
Flat fee trip-charge - $25
The function representing this situation: r(h) = 75h + 25
(A) Which is the dependent variable?
The dependent variable is the one whose value is to be gotten from the relationship between or among the values of other variables in the function. It usually appears at the left hand side of the equation. In this case, it is r(h).
(B) What do the variables represent?
The variables here - the algebra that can attain various values - are r and h.
r = total repair charges
h = repair time in hours [hence, if h = 1, repair time is 1 hour]
These are the two variables in this function.
r(h) now means repair charges in hours
THE ANSWER FROM YOUR OPTIONS IS:
(C) The repair charge r depends on the repair time h in hours.
