Question

PLEASE HELP ME !!!!!!!!!!!!!!!!

It costs $15 to become a member at a movie rental store and $2 to rent a movie. Let C represent your total cost for movies for the first month. Let x represent the number of movies you rent. Write the equation representing the cost. Plot points for your cost if you rent 1, 2, 3, 4, 5 or 6 movies. Then draw a line through the points.


a) Find the slope of that line

b) Find the C-intercept of a line

Answer 1

so in slope intercept form or y=mx+b or in your case c=mx+b where b=15, x=number of movies and b=2 dollars per cd then C=2x+15 so the C intercept is when x=0 so set x to 0 and get 2(0)+15=C 0+15=C C=15 Cintercept=15 slope=m so slope=2 C intercetp=15 so if borrow certain number of movies just plug in the values for x so 1 2(1)+15=2+15=17 2 2(2)+15=4+15=19 and so on