### Home > CCA2 > Chapter 2 > Lesson 2.1.3 > Problem 2-39

2-39.

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?2

1

1

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?