Answer:
y = -41
Step-by-step explanation:
y= -7x -6
y= -7(5) -6
y= -35 -6
y= -41
At x = -4 and -8
Take the derivative of the given equation to find rate of change of the graph.
f'(x) = 6x^2 + 72x + 192
At a horizontal tangent, f'(x) = 0, so set the equation equal to 0 and solve. Eventually you get x = -4 and -8
Answer: 10/3
Step-by-step explanation:
Look at attachment