Y= x^2- 4x + 8
a = b = c =
opens up or down?
is vertex a max or min?
y-intercept:
axis of symmetry is x=
vertex:

and graph?

y

=

−

(

x

−

1

)

2

−

4

Step-by-step explanation:

y

=

A

x

2

+

B

x

+

C

into

y

=

(

x

−

h

)

2

+

k

To do that, we complete the square:

y

=

−

x

2

+

2

x

−

5

y

=

−

(

x

2

−

2

x

)

−

5

y

=

−

(

x

2

−

2

x

+

1

)

−

5

+

1

y

=

−

(

x

−

1

)

2

−

4

add an image !

step-by-step explanation:

false

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