How do you graph the line #y=2x#?

Question

25127 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-10-23T18:46:18

See a solution process below:

First, solve for two points which solve the equation and plot these points:

First Point: For #x = 0#

#y = 2 * 0#

#y = 0# or #(0, 0)#

First Point: For #x = 2#

#y = 2 * 2#

#y = 4# or #(2, 4)#

We can next plot the two points on the coordinate plane:

graph{(x^2+y^2-0.025)((x-2)^2+(y-4)^2-0.025)=0 [-10, 10, -5, 5]}

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

graph{(y - 2x)(x^2+y^2-0.025)((x-2)^2+(y-4)^2-0.025)=0 [-10, 10, -5, 5]}