Question
Find the axis of symmetry for y=x^2+4x-7
Find the axis of symmetry for y=3x^2-18x+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^2-3
Determine etc etc for y=-x^2-2x
Determine etc etc for y=5x^2-10x+3
Find the zeros for the function y= -x^2+2x
Find the zeros etc for y=3x^2+12x+9
Find the axis of symmetry for y=3x^2-18x+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^2-3
Determine etc etc for y=-x^2-2x
Determine etc etc for y=5x^2-10x+3
Find the zeros for the function y= -x^2+2x
Find the zeros etc for y=3x^2+12x+9
Answers
for y=ax^2+bx+c, vertex is at x = -b/2a
if you complete the square, and have
(y-k) = a(x-h)^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?
if you complete the square, and have
(y-k) = a(x-h)^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?
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