Answer:
9x^2-49
Step-by-step explanation:
FOIL
Answer:
y = x - 4
Step-by-step explanation:
Perpendicular slope = 1
y + 2 = 1 (x - 2)
y + 2 = x - 2
y = x - 4
You could draw a pie graph, I'm assuming you know how to draw one but I'll tell you anyways. draw a circle with sixty slices, like pizza. shade in 15 percent, or nine sclices. that's my favorite way to model percentages.