How do you graph y=2 by plotting points?

2 Answers
Jul 10, 2018

See a solution process below:

Explanation:

The equation y=2 says for any value of x the y value is 2.

Therefore, two points on this line are:

(2,2) and (2,2)

We can first plot these points:

graph{((x+2)^2+(y-2)^2-0.04)((x-2)^2+(y-2)^2-0.04)=0 [-10, 10, -5, 5]}

Now, we can draw a straight line through the two points to graph the line:

graph{(y-2+0.000001x)((x+2)^2+(y-2)^2-0.04)((x-2)^2+(y-2)^2-0.04)=0 [-10, 10, -5, 5]}

Jul 11, 2018

See below:

Explanation:

When we have an equation of the form

y=c, we know we are dealing with a horizontal line. No matter what x is, y will always be 2.

Our graph, on the y-axis, will always be equal to 2.

graph{y=0x+2 [-10, 10, -5, 5]}

Hope this helps!