10.3 Day 2 Using the Graphing Calculator

Graph by finding 5 key points.

1. 2 6 4y x x

Solve the quadratic equation using your calculator: 20 6 4x x . (Note this on the graph)

Now that you’ve seen one, what are all the possibilities?

Find the x intercepts of the equations using your calculator:

2. 2 5 3y x x 3.

2 6 9y x x 4. 25 3 1y x x

x y

One more example:

5. 2 4 7 y x x

Solve the quadratic equation using your calculator: 20 4 7 x x . (Note this on the graph)

x y