Graphing Quadratic Equations - Intercepts

Each of the problems below is a link. If you click on the problem, it will take you to a YouTube video of a full, step-by-step solution for the problem. You may try these problems as practice and use the videos to check your answer, or you can just watch the videos to see more worked-out example problems.

Sketch a graph of y = 2x squared minus 8x + 6 by finding the x and y intercepts and plotting 2 additional points.
Sketch a graph of y = negative x squared + 2x by finding the x and y intercepts and plotting 2 additional points.
Sketch a graph of y = x squared minus x minus 4 by finding the x and y intercepts and plotting 2 additional points.