Answer:
306
Step-by-step explanation:
Answer:
option b
Step-by-step explanation:




x = -3 (Not possible)
x = 5
So, x = 5
Answer:
x= -2
Step-by-step explanation:
There has to be a coefficient in the f(x) to be able to find the rate of change

Given that
and
, it follows that


###

When
, we have

The slope of the line tangent to
at (0, 3) has slope
,

Then the tangent line at this point has equation

###
Differentiating both sides of

with respect to
yields



On this curve, when
we have

(ignoring the negative solution because we don't care about it)
The tangent to this curve at the point
has slope
. This tangent line is horizontal when its slope is 0. This happens for

and when
, there is a horizontal tangent line to the curve at the point (2, 8).