There's a few, but anything would help me!

3. sketch the graph of the quadratic function using the vertex, y-intercept, and symmetric point.

a.vertex: (-1,4) and y-intercept: 7

b. Vertex: (-3, -4) and y-intercept : 0

4. Find tgr orderd pair of the vertex using either algebraic method (vertex form or the folmula drived from the Quadratic formula)

a. y=x^2-8x+15

b. y=-3x^2-1x-15