www.VirtualNerd.com

How Do You Graph a Line If You're Given the Slope and the Intercept?

Graph a line with a slope of 2 and a y-intercept of -2

Summary

  1. The coordinate axes are made up of the x- and y-axes
  2. (0,-2) is the point of the y-intercept
  3. Since slope is defined as a fraction of "rise" over "run", it's a good idea to represent the value for slope as a fraction too
  4. We can use the slope to find more points on the line!

Notes

    1. We can put what we know together to get (0,-2)
    1. Since we used half the information we have, we still don't quite know what the line should look like
    1. Slope is best represented as a fraction because its definition is the fraction "rise" over "run"
    1. On the vertical axis, up is the positive direction and down is the negative direction
    2. On the horizontal axis, right is the positive direction and left is the negative direction
    1. On the vertical axis, up is the positive direction and down is the negative direction
    2. On the horizontal axis, right is the positive direction and left is the negative direction
    1. We can go up 2 and right 1, or down 2 and left 1 to find new points
    1. Our slope was positive, so we went up and to the right, and down and to the left