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# Math 10.2

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• ### Math 10.2

1. 1. Section 10.2GRAPH y = ax2 + bx+ c I will graph general quadratic functions.
2. 2. Example 1
3. 3. Example 1
4. 4. Example 2
5. 5. Example 21.Determine whether the parabola opens up or down. Is |a| < or > 1 ??
6. 6. Example 21.Determine whether the parabola opens up or down. Is |a| < or > 1 ??2.Find and draw the axis of symmetry, x = -b/(2a)
7. 7. Example 21.Determine whether the parabola opens up or down. Is |a| < or > 1 ??2.Find and draw the axis of symmetry, x = -b/(2a)3.Find and plot the vertex.
8. 8. Example 21.Determine whether the parabola opens up or down. Is |a| < or > 1 ??2.Find and draw the axis of symmetry, x = -b/(2a)3.Find and plot the vertex.4.Plot two points. Choose two x values less than the x value of thevertex, then ﬁnd the corresponding y values.
9. 9. Example 21.Determine whether the parabola opens up or down. Is |a| < or > 1 ??2.Find and draw the axis of symmetry, x = -b/(2a)3.Find and plot the vertex.4.Plot two points. Choose two x values less than the x value of thevertex, then ﬁnd the corresponding y values.5.Reﬂect the points plotted in Step 4 in the axis of symmetry.
10. 10. Example 21.Determine whether the parabola opens up or down. Is |a| < or > 1 ??2.Find and draw the axis of symmetry, x = -b/(2a)3.Find and plot the vertex.4.Plot two points. Choose two x values less than the x value of thevertex, then ﬁnd the corresponding y values.5.Reﬂect the points plotted in Step 4 in the axis of symmetry.6.Draw the parabola through the plotted points.
11. 11. Example 2
12. 12. 1.Determine whether theparabola opens up ordown. Is |a| < or > 1 ?? Example 2
13. 13. 1.Determine whether theparabola opens up ordown. Is |a| < or > 1 ?? Example 22.Find and draw the axis ofsymmetry, x = -b/(2a)
14. 14. 1.Determine whether theparabola opens up ordown. Is |a| < or > 1 ?? Example 22.Find and draw the axis ofsymmetry, x = -b/(2a)3.Find and plot the vertex.
15. 15. 1.Determine whether theparabola opens up ordown. Is |a| < or > 1 ?? Example 22.Find and draw the axis ofsymmetry, x = -b/(2a)3.Find and plot the vertex.4.Plot two points. Choosetwo x values less than the xvalue of the vertex, thenﬁnd the corresponding yvalues.
16. 16. 1.Determine whether theparabola opens up ordown. Is |a| < or > 1 ?? Example 22.Find and draw the axis ofsymmetry, x = -b/(2a)3.Find and plot the vertex.4.Plot two points. Choosetwo x values less than the xvalue of the vertex, thenﬁnd the corresponding yvalues.5.Reﬂect the points plottedin Step 4 in the axis ofsymmetry.
17. 17. 1.Determine whether theparabola opens up ordown. Is |a| < or > 1 ?? Example 22.Find and draw the axis ofsymmetry, x = -b/(2a)3.Find and plot the vertex.4.Plot two points. Choosetwo x values less than the xvalue of the vertex, thenﬁnd the corresponding yvalues.5.Reﬂect the points plottedin Step 4 in the axis ofsymmetry.6.Draw the parabolathrough the plotted points.
18. 18. Example 2
19. 19. 1.Determine whether theparabola opens up ordown. Is |a| < or > 1 ?? Example 2
20. 20. 1.Determine whether theparabola opens up ordown. Is |a| < or > 1 ?? Example 22.Find and draw the axis ofsymmetry, x = -b/(2a)
21. 21. 1.Determine whether theparabola opens up ordown. Is |a| < or > 1 ?? Example 22.Find and draw the axis ofsymmetry, x = -b/(2a)3.Find and plot the vertex.
22. 22. 1.Determine whether theparabola opens up ordown. Is |a| < or > 1 ?? Example 22.Find and draw the axis ofsymmetry, x = -b/(2a)3.Find and plot the vertex.4.Plot two points. Choosetwo x values less than the xvalue of the vertex, thenﬁnd the corresponding yvalues.
23. 23. 1.Determine whether theparabola opens up ordown. Is |a| < or > 1 ?? Example 22.Find and draw the axis ofsymmetry, x = -b/(2a)3.Find and plot the vertex.4.Plot two points. Choosetwo x values less than the xvalue of the vertex, thenﬁnd the corresponding yvalues.5.Reﬂect the points plottedin Step 4 in the axis ofsymmetry.
24. 24. 1.Determine whether theparabola opens up ordown. Is |a| < or > 1 ?? Example 22.Find and draw the axis ofsymmetry, x = -b/(2a)3.Find and plot the vertex.4.Plot two points. Choosetwo x values less than the xvalue of the vertex, thenﬁnd the corresponding yvalues.5.Reﬂect the points plottedin Step 4 in the axis ofsymmetry.6.Draw the parabolathrough the plotted points.
25. 25. Example 3
26. 26. Example 3
27. 27. Example 4
28. 28. Example 4
29. 29. Page 638 #3-36(3’s) and 40,