How do you graph y=-2 ? and how do you graph y=-x+4 ?

2 Answers
May 28, 2018

See below.

Explanation:

So graphing y=2 would be that you would draw a line on the y axis that go horizontal or straight of y=2

DesmosDesmos

For y=x+4, you would want to find the y-intercept which is y=4 when you plug 0 in for x. So we have 1 coordinate point.

So let plug in 1 for x.

y=(1)+4
y=1+4 ----> Distributing the negative sign to the 1
y=3 ------> Added 1+4 together

So we have another coordinate point which is (1,3)

The graph for y=x+4 should look something like this:

DesmosDesmos

May 28, 2018

I use the free online graphing calculator, Desmos. Desmos allows you to graph multiple polar equations or Cartesian equations in various colors.

Explanation:

When I enter y=2, I obtain the following graph:

![www.desmos.com/calculator](useruploads.socratic.orguseruploads.socratic.org)

When I enter y=x+4, I obtain the following graph:

![www.desmos.com/calculator](useruploads.socratic.orguseruploads.socratic.org)