9 Use the expression 43 + 8 – to find an example of
y
each kind of expression.
Kind of expression Example
Quotient
y
9
Sum
у
Variable
43 + 8

nswer: a   y-axis

step-by-step explanation:

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