Question

John began his job making $25 the first day. After that he was paid $6.75 per hour. Write the linear equation for this problem in y=mx+b form.

I got the answer but i need an explanation. thanks.

Answer 1

m = variable cost
b = fixed cost

Answer 2

m = 6.75 (since the variable cost, to the employer, is the hourly wage)

b = 25 (the fixed cost is the amount he got paid on the first day regardless of how many hours x he worked afterwards)

Answer 3

so

y = mx+b

y = 6.75x + 25

is your equation

Answer 4

Thanks!