Page 847 - Algebra 1

Example
4
Solving with a Graphing Calculator Graph
Solve x2 + 2x - 6 < 2 using a graphing calculator. SOLUTION
Step 1: Use a graphing calculator to graph each side of the inequality. Set Y1equaltox2 +2x-6andsetY2equalto2.
Step 2: Calculate the points of intersection. Step 3: Identify the values of x where Y1 ≤ Y2.
The solution set is -4 < x < 2.
Lesson Practice
a.
(Ex 1)
b.
(Ex 1)
c.
(Ex 2)
d.
(Ex 3)
e.
(Ex 4)
Graphy>x2 -6x+8.
Graphy≤x2 -4x-5.
Solve x2 - 3x ≤ 4 using a table.
Solve x2 - 5x + 10 ≤ 4 using a graphing calculator. Solve x2 - 6x - 5 < 2 using a graphing calculator.
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Saxon Algebra 1