Factored: 4 ( a + 2c - 2)
Standard form/simplified : 4a + 8c - 8
A negative plus a negative is going to be a negative in this case. so your subtracted but to really look like your adding them together
Firstly the equation would be y=7.7x+59
(A)The slope is 7.7 (B) and shows that there is a 7.7 charge per week the person attends.
(A)The y intercept is 59 (B) and is the initial fee that the gym charges.