English subtitles

← Parabola Shifting - College Algebra

Get Embed Code
2 Languages

Showing Revision 2 created 05/24/2016 by Udacity Robot.

  1. Graph B can help us visualize the first inequality, and graph A can help us
  2. visualize the second one. Now, we're not totally there yet in terms of the
  3. actual inequalities themselves, but at least in both cases, we now have the
  4. curves and lines graph that we need in order to show these inequalities on the
  5. graphs. Remember that when we were dealing with solving equations graphically,
  6. you could look at both sides of an equation and set each one individually equal
  7. to y, and then graph the two equations that gave us. So in this first graph over
  8. here, which we know of course belongs to x squared minus 16 is greater than
  9. zero. I've graphed the parabola, y equals x squared minus 16, and I've graphed
  10. the line, y equals zero. Just the x-axis. Over here in coordinate plane b, I've
  11. graphed the parabola y equals x squared, and the line y equals 16.