Y=(x+9)(x-3)+c
∵(-3,-36)lies on it.
-36=(-3+9)(-3-3)+c
-36=(-6)(-6)+c
-36=36+c
c=-36-36=-72
y=(x-9)(x+3)-72
y=x^2+3x-9x-27-72
y=x^2-6x-99
You would multiply 36 and 6 to get x
15 x 10 is 150
600 - 150 is 450
Tommy still need 450 pencils
Hope this helps :)
Answer:
D
Step-by-step explanation:
From the graph, the lines intersect at (3, 1) so that is the answer.
