Alg. I ~ Parabola Graphs

What is the vertex

of the graph?

,
Vertex:
,
What is the vertex of the quadratic?
(
y = (x-6)2
,
)
What is the vertex of the quadratic?
(
y = x2 -4
,
)
What is the vertex of the quadratic?
(
y = x2
,
)
What is the vertex of the quadratic?
(
y = (x+5)2 +9
,
)
What is the vertex of the quadratic?
(
y = x2 +1
,
)

Will the parabola open up or down?

 up

f(x) = (x-5)2 +6

 down

Will the parabola open up or down?

 up

f(x) = -2x2 -6

 down

Is the vertex a maximum or minimum value?

 maximum

y = -x2 +10

 minimum

Is the vertex a maximum or minimum value?

 maximum

y = 3x2  -6

 minimum

Which graph is the widest?

y = -¾x2

 y = ⅓x2

y = 3x2

 y = x2

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