Using a Table to Graph a Line y=mx

graph a linear equation by using a table

Category:

Education

Tags:

• table
• graph
• line

[shichiren07]

why did you start at -6 in x value? Thanks for uploading the video.

[hkelbel]

@shichiren07 Hi, I picked -6, -3, 0, 3, and 6 because I knew that when we multiply by the fraction -2/3 and I didn't want to worry about trying to graph fractions or decimals. When we graph equations using a table like this, we can pick any values for x that we want to. For example, if I picked -2 for my x-value I would have: (-2/3)(-2) = (-2*-2)/3 = 4/3 or 1.333... Which isn't as nice to graph. So, I always like to look at the equation and pick x-values that will graph easily. Thanks!

[hkelbel]

The "m" stands for the slope of the graph, so in this case the -2/3 is the slope of the line. Thanks for watching!

[petmaster495]

In the title, it has the equation: y=mx

What does the m stand for?  Is it, in this case in the video, the -2/3? I just want to make sure.

Thanks for uploading the video.