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1. State the x-intercepts
2. State the axis of symmetry
3. State the optimal value
How you graph factored form?
Y = (X + 5) (X + 3)
0 = (X + 5) (X + 3)
X + 5= 0
X + 5 - 5 =0 - 5
X = -5
X + 3= 0
X + 3 - 3 =0 - 3
X = -3
( -5, 0) ( -3, 0)
s + t
2
X =
X =
-5 + (-3)
2
X =
-8
2
X =
-4
Y = (X + 5) (X + 3)
X = -4
Y = (-4 + 5) (-4 + 3)
Y = (1) (-1)
Y = -1
Y -axis
X -axis
4. Direction of opening
The "a" value in the equation is a positive 1, because it's a 1 you don't need to write it. So the parabola will open up.
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