Answer:
1. 
2. 
3. 
Step-by-step explanation:
The equation of the line that passes trough the points A(14,-1) and B(2,1) is

The y-intercept of this line is

Line BC is perpendicular to line AB, then its slope is
Line BC passes through the point B, so

If the y-coordinate of point C is 13, then x-coordinate is

Answer:
Given: R is the midpoint of QS.
QS=40
Now,
QR=40/2(R IS THE MIDPOINT)
=20
Answer:
50
Step-by-step explanation:
2(5)^2=2(25)=50
Answer:
Start at zero, then go to the left two times, then go down eight more. The new location would be negative ten.
Step-by-step explanation: