What are the slope and the y-intercept of the line shown in the graph? (A) y-intercept = 2 and slope = -3
(B) y-intercept = 2 and slope = 3
(C) y-intercept = 3 and slope = 2
(D) y-intercept = -3 and slope = 2

Answer A:  y-intercept is 2 and slope is -3.

Step-by-step explanation:

It's immediately apparent that the line crosses the y-axis at (0, 2), so the y-intercept is 2.  Also apparent is the negative slope.  Thus, we choose Answer A:  y-intercept is 2 and slope is -3.

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