13. write the equation of a line parallel to
y = - 4x + 9 and goes through the point (7, 6)

y = -4x + 34

Step-by-step explanation:

The gradient(slope) remains the same...so hence the slope = (-4)

The equation of the line;

apply the formula,

[ (y - y(coordinate of the given point) = slope × [(x - x(coordinate of the given point)]

;y - 6 = -4(x - 7)

;y - 6 = -4x + 28

Then move (-6) to the right hand side,

; y = -4x + 34

f(x) = (x+6)(x+6)

Step-by-step explanation:

To find the x intercept you want each set of parenthesis to equal out to zero. Therefore to have an x intercept of only -6, then both sets of parenthesis must be (x+6) because -6 + 6 = 0.