Alg2H Lesson/Homework Date ______ WK #4

5-2 Writing Quadratic Functions in Vertex Form by Completing the Square

Complete without a calculator!!!

1. 5112 xxy

2. 6244 2 xy

3. 20112 2 xxy

4. 232 xxy 5. y = -3x2 + 7x – 2

Using Intercept Form find x-intercepts, axis of symmetry, vertex

5. )3)(1(5 xxy

Using Vertex Form find the exact x-intercepts (simplified radical form), axis of symmetry, vertex

6. 2)5(36 xy

Using the Quadratic Formula find the x-intercepts. Sketch a graph with the x-intercepts

labeled. Use them to determine the axis of symmetry.

7. cbxaxy 2