5. graph each line. use a table of values or the slope y-intercept method. a) y = x + 2 b) y = 2x + 3 c) y = x - 5 d) y = -x + 6

answer: 1) twenty-seven times y

              2) twenty-seven multiplied by y

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15