Question

What does a linear function model?

Answer 1

A linear function models a straight line that has a constant slope or rate of change.

There are various forms of linear equations.

Standard Form

`Ax+By=C`

where `A, B and C` are real numbers.

Slope Intercept Form

`y=mx+b`

where `m` is the slope and `b` is the `y`-intercept

Point Slope Form

`(y-y_1)=m(x-x_1)`

where `(x_1,y_1)` is any point on the line and `m` is the slope.