Plug the two points into the slope formula.
m = y2-y1/x2-x1
m = (-4 - 5)/(0 - 2)
m = -9/-2
m = 4.5
So the slope is 4.5
You first simplify the expression using PEMDAS
-2x^3-10x^2+2x^3-10x^2+x
then combine like terms,
(-2x^3+2x^3), (-10x^2-10x^2), x
cancels out^
so the answer would be -20x^2+x
1a) no it would be 54
1b) yes
1c) yes
1d) no it would be 40
1e) yes
hope this helped
Answer:
there is a 12.5% increase
It’s going to be the area of the triangle on the side times the length, so 0.5 x 36 x 15 x 48 = 12960