Algebra
posted by Breona on .
Find the axis of symmetry for y=x^2+4x7
Find the axis of symmetry for y=3x^218x+1
Find the axis of symmetry for y=5x^2+10+3
Determine if the vertex is a maximum or minimum and identify it y=2x^23
Determine etc etc for y=x^22x
Determine etc etc for y=5x^210x+3
Find the zeros for the function y= x^2+2x
Find the zeros etc for y=3x^2+12x+9

for y=ax^2+bx+c, vertex is at x = b/2a
if you complete the square, and have
(yk) = a(xh)^2 then
the vertex is at (h,k)
the axis of symmetry goes through the vertex.
the sign of the x^2 term determines whether the vertex is a min or max.
So, what do you come up with?