Question

How do you graph the line `y = - 3`?

Answer 1

See solution below.

Explanation:

Note that for any value of `x` you choose, the equation `y=-3` tells you that you have a `y`-value of `-3`. In table form, you get the following

`{:(ul(x),ul(y)),(-2,-3),(-1,-3),(color(white)(a)0,-3),(color(white)(a)1,-3),(color(white)(a)2,-3),(color(white)(a)3,-3):}`

When we plug these values into a graph we get the following

Next step is to simply connect the dots with a straight line, like so: