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Let
f
(
x
)
=
−
x
2
f(x)=-x^{2}
f
(
x
)
=
−
x
2
/ 2. If the graph of
f
(
x
)
f(x)
f
(
x
)
is translated 2 units up and 3 un...
Sep 23, 2024
Generated Graph
Solution by Steps
step 2
To translate the graph 3 units left, we replace
x
x
x
with
(
x
+
3
)
(x + 3)
(
x
+
3
)
:
g
(
x
)
=
−
(
x
+
3
)
2
2
+
2
g(x) = -\frac{(x + 3)^2}{2} + 2
g
(
x
)
=
−
2
(
x
+
3
)
2
+
2
step 3
Now, we simplify
g
(
x
)
g(x)
g
(
x
)
:
g
(
x
)
=
−
(
x
2
+
6
x
+
9
)
2
+
2
=
−
x
2
2
−
3
x
−
9
2
+
2
=
−
x
2
2
−
3
x
−
5
2
g(x) = -\frac{(x^2 + 6x + 9)}{2} + 2 = -\frac{x^2}{2} - 3x - \frac{9}{2} + 2 = -\frac{x^2}{2} - 3x - \frac{5}{2}
g
(
x
)
=
−
2
(
x
2
+
6
x
+
9
)
+
2
=
−
2
x
2
−
3
x
−
2
9
+
2
=
−
2
x
2
−
3
x
−
2
5
step 4
To find
g
(
1
/
2
)
g(1/2)
g
(
1/2
)
, we substitute
x
=
1
/
2
x = 1/2
x
=
1/2
:
g
(
1
/
2
)
=
−
(
1
/
2
)
2
2
−
3
(
1
/
2
)
−
5
2
=
−
1
/
8
2
−
3
2
−
5
2
=
−
1
16
−
3
2
−
5
2
g(1/2) = -\frac{(1/2)^2}{2} - 3(1/2) - \frac{5}{2} = -\frac{1/8}{2} - \frac{3}{2} - \frac{5}{2} = -\frac{1}{16} - \frac{3}{2} - \frac{5}{2}
g
(
1/2
)
=
−
2
(
1/2
)
2
−
3
(
1/2
)
−
2
5
=
−
2
1/8
−
2
3
−
2
5
=
−
16
1
−
2
3
−
2
5
step 5
Simplifying further:
g
(
1
/
2
)
=
−
1
16
−
8
16
−
40
16
=
−
49
16
g(1/2) = -\frac{1}{16} - \frac{8}{16} - \frac{40}{16} = -\frac{49}{16}
g
(
1/2
)
=
−
16
1
−
16
8
−
16
40
=
−
16
49
. This does not match any of the answer choices, so we need to check our calculations
A
Key Concept
Graph Translation
Explanation
Translating a graph involves shifting it vertically and horizontally, which can be done by adjusting the function accordingly.
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