Extra Practice

Graph y = -x² – 6x – 8 If you need to print graph paper, follow the link below.

Free Graph Paper

Click on the blanks to reveal the steps as you graph.

Step 1 - Interactive button. Assistance may be required. _____________________________ Find the vertex using the formula x = − b over two a b 2a .

Step 2 - Interactive button. Assistance may be required. _____________________________ Find the axis of symmetry.

Step 3 - Interactive button. Assistance may be required. _____________________________ Pick two values for x and substitute them into the equation to find their y-coordinates.

Step 4 - Interactive button. Assistance may be required. _____________________________ Plot the vertex and two points, draw in the axis of symmetry, then reflect the points.

Step 5 - Interactive button. Assistance may be required. _____________________________ Sketch your parabola.

Interactive popup. Assistance may be required. Check Your Graph

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