Answer:
(-8,8)
Step-by-step explanation:
The midpoint
of the segment AB with endpoints
and
has coordinates

In your case,
then

Answer:
x = 7, x = -10
Step-by-step explanation:

Use the quadratic formula.

Solve.
x = 7, x = -10
You can also factor if you want - that is a faster method.
No the answer is B. t=6 or -6
F(x)=x-5
f(4)=x-5
f(4)=4-5
f(4)=-1