SOLUTION: For each equation, identify the equation of the axis of symmetry, the coordinates of the vertex, the y-intercept, the zeros, and the maximum or minimum values. 1. y = x 2  + 4x

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Question 1179632: For each equation, identify the equation of the axis of symmetry, the coordinates of the
vertex, the y-intercept, the zeros, and the maximum or minimum values.
1. y = x 2  + 4x + 3
2. y = -2(x - 3) 2  + 9
3. y = 3(x - 0.5) 2
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Number 1 only.

y=x%5E2%2B4x%2B3
If like in vertex form, then
y=x%5E2%2B4x%2B4-4%2B3
y=%28x%2B2%29%5E2-1

Vertex is at (-2,-1), and is a MINIMUM of the graph.

Symmetry Axis is x=-2.

ZEROS: %28x%2B2%29%5E2-1=0
%28x%2B2%29%5E2=1
x%2B2=0%2B-+1
-
system%28zeros_are%2C-3%2Cand%2C-1%29.