Answer:
Equation for total cost will be [tex]y= 99x+55[/tex]
Step-by-step explanation:
Given: Activation fees= $50
Due per month to be paid= $99
Now, finding the total of the phone.
Total cost= [tex]Activation\ fees+ (due\ to\ be\ paid\ each\ month\times number\ of\ months)[/tex]
Lets assume the number of months, due to be paid be "x" and total cost be "y".
∴ Slope will be [tex]99[/tex], which is due paid every month and [tex]constant\ value\ 50\ will\ be\ intercept[/tex]
∴ Forming an equation on the total cost of phone.
⇒ [tex]y= 99x+55[/tex]
Hence, the equation for the total cost of phone will be [tex]y= 99x+55[/tex]