Answer:
A function is going to be a line graphed on a coordinate plane. It has 1 or more variables. A function can be a straight line, a parabola, etc. however a function cannot have a repeating x-value.
Answer:
Dont tell me you're trolling. Anyway, its 16
1. bobby would be 21 and chris 18.
The answer would be y=1/7x-4
