PLEASE ANSWER ASAPPP!!

To join a health club, a person must pay a $75 one-time fee plus a charge of $30 per month This situation can be represented by an equation of the form y=mz+b where x is
the time in months and y is the total cost in dollars What is the rate of change of the equation?
30
B 45
c75
D105

Respuesta :

Answer:

A. 30

Step-by-step explanation:

y=mz+b

b=75

m=30

ROC(rate of change)=slope

ROC=30

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