Answer:
y
=
a
(
x
−
h
)
2
+
k
We want to make the equation like this.
y
=
4
x
2
−
8
x
+
9
=
y
=
4
(
x
2
−
2
x
)
+
9
=
4
(
x
2
−
2
x
+
1
)
−
4
+
9
(when you add one inside the parenthesis, you subtract
4
on the outside, as
a
is
4
).
=
4
(
x
−
1
)
2
+
5
Step-by-step explanation: ni can i get to kno u
