The formula of the midpoint of HE:

We have H(0; 0) and E(2a; 2a). Substitute:
Answer:
Option B and D are correct
Step-by-step explanation:
Exponential functions are really useful in the real world situation. They can be used to solve following
a) Population Models
b) Determination of area and perimeters
c) Determine time related things such as half life, time of happening of an event etc.
d) Useful for solving financial problems such as computing investments etc.
Hence, option B and D
F(3)=2*3-8=-2.
Hope that helps.
Parallel lines have the same slope so you use the 8 from the equation and plug in with your points to point slope form equation