Question

draw the graph of each of the following quadratic polynomial functions

a)y=x^2-6x+5
b)y=4x^2+2x+1

x=(-b+-sqrt(b^2-4ac))/2a
Vx=-b/2a
Vy=(-b^2-4ac)/4a

Answer 1

Refer to the plot attached, drawn by Mathematica 9.

Answer 2

can you explain how you did it?

Answer 3

The plot was generated by the Mathematica 9, computer program.