Make predictions about how many times the graph of each equation below will touch the x-axis. You may first want to rewrite some of the equations in a more useful form. Homework Help ✎
How many x-intercepts are there?
Look at parts (a) through (c). Remember to factor first to find the x-intercepts.
Look at parts (a) through (d).
Look at parts (a) through (d). Remember to factor -1 out.
Check your predictions with your calculator.
Write a clear explanation describing how you can tell whether the graph of a parabola will touch the x-axis at only one point.
What pattern did you notice above?