Educator's Choice Middle School Math Excelerator (Jewel Case)

We are asked which of these lines are parallel. So parallel lines are lines that have the same slope, and they're different lines, so they never, ever intersect. So we need to look for different lines that have the exact same slope. And lucky for us, all of these lines are in y equals mx plus b or slope-intercept form, so you can really just look at these lines and figure out their slope. The slope for line A, m is equal to 2. We see it right over there. For line B, our slope is equal to 3, so these two guys are not parallel. I'll graph it in a second and you'll see that. And then finally, for line C-- I'll do it in purple-- the slope is 2. So m is equal to 2. I don't know if that purple is too dark for you. So line C and line A have the same slope, but they're different lines, they have different y-intercepts, so they're going to be parallel. And to see that, let's actually graph all o