Answer:(6,8)
Step-by-step explanation: I didn't use a formula, but since (3,4) was the midpoint I went out three more and up four more, which got me to (6,8).
Answer:
Plot the points (0,0) , (5, 4) and (-5, -4).
Step-by-step explanation:
You could plot three points. Then if they have been plotted correctly the graph will be a straight line joining these 3 points.
The 3 points could be
x y
0 0
5 4 ( 4 because y = 4/5 * 5 = 4)
-5 -4 ( y = 4/5 * -5 = -4).
By plunging 5 into the equation as x, you have the equation
7(5) - 15
7 * 5 = 35 so
35 - 15
f(5) = 20