# Straight Line Graphs JWilson

- Author:
- J Wilson

- Topic:
- Equations, Function Graph

The dotted red line has the equation y = mx + c.
Change the values of M & C and see what happens to the red line.

What effect does changing the value of C have if you keep M constant?
What effect does changing the value of M have if you keep C constant?
What happens when C=0?
What happens when M=0?
Change the value of M and C so that the red line matches up with the black line.
Is it always possible to make the red line match up with the black line?