The equation c = 10p + 60 can be used to represent the cost of a family cell phone plan, where c is the cost in dollars, and p is the number of phones on the plan. Which statement about the equation is true? The y-intercept is 60, which is the monthly fee for a plan, regardless of the number of phones.
The slope is 60, and because it costs $60 per phone on the plan.
The slope is 10, and there are 10 phones on the plan.
The y-intercept is 10, meaning that it costs $10 to start a plan.