The antiderivate of 5x is 5x^2 / 2 .
The answer is C) the slope is 2.50 and the y-intercept is 9, assuming the question refers to the parameters of his monthly cost.
His cost function could be described as y= 2.5x + 9, where x is the number of comic books he purchases. If he buys no comic books, he still has to pay the $9 membership fee.
Answer:
The answer should be B
Step-by-step explanation:
