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