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March 29, 2012. By the end of today: I will be able to find x-intercepts by graphing. Graph the following and determine the solutions. x 2 + x – 12 = 0. Graph the following and determine the solutions. x 2 + 7x = -10 *Must be y= or 0= to use calculator.
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March 29, 2012 By the end of today: I will be able to find x-intercepts by graphing.
Graph the following and determine the solutions. x2 + x – 12 = 0
Graph the following and determine the solutions. x2 + 7x = -10 *Must be y= or 0= to use calculator.
Graph the following and determine the solutions. 3x2 – 5x = 8 *Must be y= or 0= to use calculator.
Finding zeros in your calculator. • Find the zeros: 16x2 – 12x – 18 = 0 1. Press y= and enter in the function.
Finding zeros in your calculator. 2. Press graph.
Finding zeros in your calculator. 3. Press 2nd and then Trace. 4. Press #2 zero
Look at each zero individually. 5. Find a point to the left of the zero and press enter.
Look at each zero individually. 6. Find a point to the right of the zero and press enter.
Look at each zero individually. 7. Press enter one more time.
Finding zeros in your calculator. 8. Repeat steps 3-7 to find the other zero.
Finding zeros in your calculator. • Find the zeros of y = 8x2 – 18x – 35
Assignment The worksheet! Quiz tomorrow… review (factoring with t-chart) finding zeros by graphing