How do you graph the equation #y=3x#?

2 Answers
Jun 30, 2017

Start at (0,0) move one place to the right and three places up, make a point, at (1,3) repeat and make another point at (2,6). Connect the points.

Explanation:

The y intercept form is # y = mx + b#

In this equation the m or slope is # 3/1#

In this equation the b or y intercept is 0

the b or y intercept is 0 ( b think beginning ) so start at ( 0,0)

The slope m is the angle of the line think mountain slope.

So starting at ( 0,0) the b or beginning move over 1 and up 3

because the slope is 3 = # y/x #

Repeat this process at least twice, so that there are three points to connect to make a line.

Jun 30, 2017

See the explanation.

Explanation:

Graph:

#y=3x#

This equation is in slope intercept form, and can be rewritten as:

#y=3x+0#, where #3# is the slope and "0" is the y-intercept.

Determine a few points on the line by choosing values for #x# and solve for #y#.

#"Points"#

#x=(-2),##y=(-6)#

#x=0,##y=0#

#x=2,##y=6#

Plot the points and draw a straight line through them.

graph{y=3x [-14.99, 6.975, -5.55, 5.435]}