Question

How do you graph the line `f(x)=9`?

Answer 1

`"see explanation"`

Explanation:

`"the equation" f(x)=9`

`"is a line parallel to the x-axis passing through all points in"`
`"the plane with a y-coordinate of 9"`

`"choosing 2/3 points with a y-coordinate of 9 and drawing"`
`"a straight line through them will give the graph"` graph{y-0.001x-9=0 [-40, 40, -20, 20]}