Question

What is the equation of the line?
http://static.k12.com/calms_media/media/1503500_1504000/1503770/1/1bf0d5d19875f8ba5b37c787b050508150a1633f/MS_IMC-140523-131301.jpg

Answer 1

12

Answer 2

the options are A. -2/3xB. -3/2xC. 2/3xD. 3/2x

Answer 3

You have to find the slope of the line.
\[m=\frac{ rise }{ run }\]
Pick one point (the origin is ideal, since it crosses there), then count how many steps you have to go up and how many steps you have to go over to get to another exact point. Turn that into a fraction -- you may need to reduce, depending on which two points you choose.

Something else to think about -- does the line go uphill or downhill from left to right? If uphill, the line has positive slope. If downhill, the line has negative slope. That will help narrow down your answers.