The document provides instructions for using a graphing calculator to find the roots, vertex, maximum or minimum value of quadratic functions. It lists steps like determining the nature of the roots, finding the roots, y-intercept, axis of symmetry, and turning point. Examples of quadratic functions are given, along with homework problems that ask students to provide details about the roots, intercepts, vertex and concavity for each function.

1. Do Now: Determine the nature of the roots, find the roots, y-int, turning point, max or min, sketch graph: y = x 2 + 3x - 4 Aim: How do we find the roots and vertex using the graphing calculator? (3rd and Final Try) MB43 3/12/09 Lomas HW: For each list the: a) Nature of Roots b) Roots c) y-intercept d) Axis of Symmetry e) Turning Piont f) Concave up or down g) Sketch the graph 1) y = x 2 - 8x - 6 2) f(x) = x 2 + 4x - 3

2. Use the calculator to find roots, max or min, and vertex y = x 2 - 6x - 6 Aim: How do we find the roots and vertex using calculator the graphing? (3rd Try) MB43 3/12/09 Lomas HW: For each list the: a) Nature of Roots b) Roots c) y-intercept d) Axis of Symmetry e) Turning Piont f) Concave up or down g) Sketch the graph 1) y = x 2 - 8x - 6 2) f(x) = x 2 + 4x - 3

3. Aim: How do we find the roots and vertex using calculator the graphing? (3rd Try) MB43 3/12/09 Lomas y = 2x 2 + 3x - 4 y = x 2 + 3x - 10 y = x 2 + 8x + 17 1) 3) 2) Use a calculator to find a)roots, b)max or min, and c)turning point HW: For each list the: a) Nature of Roots b) Roots c) y-intercept d) Axis of Symmetry e) Turning Piont f) Concave up or down g) Sketch the graph 1) y = x 2 - 8x - 6 2) f(x) = x 2 + 4x - 3

4. Aim: How do we find the roots and vertex using calculator the graphing? (3rd Try) MB43 3/12/09 Lomas Determine the nature of the roots, then find them: y = x 2 + 3x - 10 0 = x 2 + 8x + 17 1) 3) 2) 4 = 2x 2 + 3x HW: For each list the: a) Nature of Roots b) Roots c) y-intercept d) Axis of Symmetry e) Turning Piont f) Concave up or down g) Sketch the graph 1) y = x 2 - 8x - 6 2) f(x) = x 2 + 4x - 3

5. Aim: How do we find the roots and vertex using calculator the graphing? (3rd Try) MB43 3/12/09 Lomas HW: For each list the: a) Nature of Roots b) Roots c) y-intercept d) Axis of Symmetry e) Turning Piont f) Concave up or down g) Sketch the graph 1) y = x 2 - 8x - 6 2) f(x) = x 2 + 4x - 3