Download presentation
Presentation is loading. Please wait.
Published byBethanie Bond Modified over 9 years ago
1
THEY LOOK LIKE THIS 0 Zeros
2
What are zeros? Zeros are what x equals OR Where your graph touches the x-axis
3
How to Find Zeros 1. If you have a graph, look at it. Wherever the graph crosses the x-axis, those are your zeros.
4
2. If you have no graph and a simple equation like this: -2x+4=0 Just solve.
5
-2x+4=0 -4 -2x=-4 /-2 x=-4/-2 x=2
6
3. If you have a quadratic equation like this: x = -2x 2 - 6x + 8 = 0 No need to fear. Just factor.
7
x = -2x 2 - 6x + 8 = 0 becomes (-2x-7)(x-1)=0 Set each one equal to 0 and solve
8
-2x-7=0 +7 -2x=7 /-2 x=7/-2 x-1=0 +1 x=1 x=7/-2, x=1
9
What if factoring doesn't work?!?! Don't worry. It's okay. Use the quadratic formula. -b +/- (square root)b 2 -4ac/2a
Similar presentations
© 2024 SlidePlayer.com. Inc.
All rights reserved.