Question

What are the key features for a linear function, and how can

you use those features to sketch graphs?

Answer 1

All linear functions are in the form
y = mx + b.

m = slope

b = y-intercept

If you know the slope, which means rise divided by run and the y-intercept which is a constant, you can graph any linear function. A linear function is a STRAIGHT LINE. The word linear means STRAIGHT LINE.