Question

True expression -50x+ 100 represents the balance, in dollars, of a bank account after x months. What is the range of change, in dollars per month, of the bank account balance?

Answer 1

Let

x--------> the number of months

y-------> represents the balance, in dollars, of a bank account

we know that

y=-50x+100

the rate of change is equal to the slope of the line

so

$m=-50\frac{\ }{month}$

therefore

the answer is

the rate of change is $-50\frac{\ }{month}$