Answer:
Explanation:
Direction: Opens Up
Vertex:
(
0.784
¯¯¯¯
09
,
551.69488
¯¯¯¯
63
)
Focus:
(
0.784
¯¯¯¯
09
,
551.75170
¯¯¯¯
45
)
Axis of Symmetry:
x
=
0.784
¯¯¯¯
09
Directrix:
y
=
551.63806
¯¯¯¯
81
Select a few
x values, and plug them into the equation to find the corresponding
y values. The
x values should be selected around the vertex.
Replace the variable
x
with
0
in the expression.
f
(
0
)
=
4.4
(
0
)
2
−
6.9
⋅
0
+
554.4
Simplify the result.
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554.4
The
y
value at
x
=
0
is
554.4
.
y
=
554.4
Replace the variable
x
with
−
1
in the expression.
f
(
−
1
)
=
4.4
(
−
1
)
2
−
6.9
⋅
−
1
+
554.4
Simplify the result.