What is the question you need help on
X = -4
the slope is undefined as it only passes through the x-axis on -4.
.28125 lb? I did 16/4.5 and it equals 3.5555, then we did 1/3.5555 then we got .28125 lb
Not sure what you mean
X^3 + 7*x^2 + -16*x-112
=(x + 4)*(x + 7)*(x - 4)
