QUADRATIC FUNCTIONS Solving Quadratic Equations (Page 2 of 5)

Use CALC zero to find the x-intercepts. For the left intercept, we will use a left bound of -3, a right bound of -1, and a guess of -2. For the right intercept, we will use a left bound of 3, a right bound of 5, and a guess of 4.

 2nd CALC key. 2: menu selection. -3 ENTER key. -1 ENTER key. -2 ENTER key.

 2nd CALC key. 2: menu selection. 3 ENTER key. 5 ENTER key. 4 ENTER key.

Calculator screen image. Calculator screen image.

The zeros of the function are x ≈ -1.83 and x ≈ 3.83, so the approximate solution set of the equation is {-1.83, 3.83}.

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