Question

How do you graph `y = -3x + 4`?

Answer 1

Your graph will be a straight line. You can set values for `x` and evaluate the correspondent `y` to find the point(s) used to plot your line.

Explanation:

This equation corresponds graphically to a straight line.
The line is inclined downwards and this can be seen by its slope `-3` which is the coefficient of `x`. This negative slope tells you that every time `x` increases of `1` unit then `y` decreases of `3`.

The line also cross the `y` axis at `4`.

We can plot the line with two points only that can be found as:
set `x=0` then `y=4` the y-intercept;
set `x=1` then `y=-3+4=1`
So you get: