How do you graph #g(x)=2x-2# by plotting points?

Question

5221 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-03-29T12:13:04

See below.

#g(x)=2x-2#

#y=2x-2#

This is just the equation of a line, therefore we only need to find two points and the connect these with a straight line.

We will use intercept points:

The y axis intercept occurs where #x=0#

#y=2(0)-2#

#y=-2#

Coordinates:

#color(blue)((0,-2)#

The x axis intercept occurs where #y=0#

#0=2x-2#

Add 2 to both sides:

#2=2x#

Divide by 2:

#x=1#

Coordinates:

#color(blue)((1,0)#

Plot these two points and join with a straight line. You should have a graph that looks like this:

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