Question

Segment AB and BC form a right angle at point B. If A=(-3,-1) and B=(4,4) what is the equation of BC?

Answer 1

Slope of AB =m
\[ m=\frac{4-(-1)}{4-(-3)}=\frac 5 7
\]

Answer 2

Slope of BC is
\[
-\frac 75
\]

Answer 3

B=(4,4)
equation of BC
\[
y-4= -\frac 7 5 ( x-4)\\
y=-\frac 7 5 ( x-4)+4
\]

Answer 4

Im not sure how to do it. These were my choices
x+3y=16
-7x-5y=-48
7x-5y=48

Answer 5

BC would be (4,-1)?????

Answer 6

-7x-5y=-48

Answer 7

\[
y-4= -\frac 7 5 ( x-4)\\
5 y -20 = -7x +28
\\
7x +5y =48\\
-7x -5y =-48
\]
Second choice

Answer 8

thank you!!!!

Answer 9

yw