Dominic is looking to buy a cell phone, and he's comparing cellular plans. Company A charges a $175 start-up fee and $75 per month for service. Company B does not have a start-up fee, but it charges $97 per month. He wants to know how many months it will take before the average monthly cost of Company A is less than Company B. Which inequality will help Dominic figure this out?

Aquadratic function has the general form of equation written as: y = ax² + bx + c. when you graph this equation, it would give a characteristic of a parabolic form. this curve forms like a symmetric arc. the solution is to plot the points to a graph as shown in the picture attached. as you can see, only the last graph shows a parabolic curve. thus, this points represent a quadratic function. the answer is the last table in the choices.