Need help with this task

[forest stump]

4

[wind quest]

How

if Y is equal to 0

Then it's 5

[forest stump]

x=-5,-3,0,4

f'(x)=0

clear?

[wind quest]

No, why miss -4 or 1

[forest stump]

the problem require f'(x) =0,no f(x) = 0

f(-4) = 0 but f'(-4)!=0

[wind quest]

derivative of -4 is 0

[queen shore]

You are looking at a graph of $f(x)$ which does have five roots

as you have noted - the five solutions to $f(x)=0$.

But, the question is asking about $f'(x)$ being zero and

$f'(x)$ is the derivative of $f(x)$.

So, the question is asking what $f'(x) = 0$ looks like?

[rich bone]

Jay

[wind quest]

.close