Question

How do you graph the line `y=2x+5`?

Answer 1

Using some arbitrary values for `x` compute corresponding `y` values; plot the resulting coordinate pairs; and draw a line through those points.

Explanation:

You will need at least 2 sets of coordinates since this is a linear equation. (3 or more would allow you to check your results).

As an example I used
`color(white)("XXX")x in {-2,0,+2}`
to get the sample coordinate pairs:
`color(white)("XXX")(-2,1)`
`color(white)("XXX")(0,5)` and
`color(white)("XXX")(+2,9)`

Here is the result: