update: I solved part a but cant figure out part b yet .
thank you i got it!! :)
Update: I figured out #1!
the answer was 2sqrt(13) if u were wondering
-4q - (-8q) + 10
-4q + 8q + 10
4q + 10
oops! that was wrong!
In the form y = mx+b, m is the slope. So it's -1