Question

How do you graph the line `y=4x`?

Answer 1

See explanation.

Explanation:

To graph a linear function you need to substitute 2 values for `x` and calculate the corresponding function values.

In this example we can have:

`f(0)=4*0=0`

`f(1)=4*1=4`

Now we have to draw two points `(0,0)` and `(1,4)` and connect them with a line.

graph{(y-4x)(x^2+y^2-0.05)((x-1)^2+(y-4)^2-0.05)=0 [-10, 10, -5, 5]}