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Let’s check out your problem:
- Let
g
g
g
be a function such that
g
(
1
)
=
−
2
g(1)=-2
g
(
1
)
=
−
2
and
g
′
(
1
)
=
7
g^{\prime}(1)=7
g
′
(
1
)
=
7
.
\newline
- Let
h
h
h
be the function
h
(
x
)
=
x
h(x)=\sqrt{x}
h
(
x
)
=
x
.
\newline
Let
F
F
F
be a function defined as
F
(
x
)
=
g
(
x
)
⋅
h
(
x
)
F(x)=g(x) \cdot h(x)
F
(
x
)
=
g
(
x
)
⋅
h
(
x
)
.
\newline
F
′
(
1
)
=
F^{\prime}(1)=
F
′
(
1
)
=
View step-by-step help
Home
Math Problems
Algebra 2
Evaluate exponential functions
Full solution
Q.
- Let
g
g
g
be a function such that
g
(
1
)
=
−
2
g(1)=-2
g
(
1
)
=
−
2
and
g
′
(
1
)
=
7
g^{\prime}(1)=7
g
′
(
1
)
=
7
.
\newline
- Let
h
h
h
be the function
h
(
x
)
=
x
h(x)=\sqrt{x}
h
(
x
)
=
x
.
\newline
Let
F
F
F
be a function defined as
F
(
x
)
=
g
(
x
)
⋅
h
(
x
)
F(x)=g(x) \cdot h(x)
F
(
x
)
=
g
(
x
)
⋅
h
(
x
)
.
\newline
F
′
(
1
)
=
F^{\prime}(1)=
F
′
(
1
)
=
Apply Product Rule:
Use the product rule for differentiation, which states that
(
f
∗
g
)
′
=
f
′
∗
g
+
f
∗
g
′
(f*g)' = f'*g + f*g'
(
f
∗
g
)
′
=
f
′
∗
g
+
f
∗
g
′
.
Differentiate
h
(
x
)
h(x)
h
(
x
)
:
Differentiate
h
(
x
)
=
x
h(x) = \sqrt{x}
h
(
x
)
=
x
to get
h
′
(
x
)
h'(x)
h
′
(
x
)
.
h
′
(
x
)
=
1
2
x
h'(x) = \frac{1}{2\sqrt{x}}
h
′
(
x
)
=
2
x
1
.
Evaluate
h
′
(
1
)
h'(1)
h
′
(
1
)
:
Evaluate
h
′
(
1
)
h'(1)
h
′
(
1
)
by substituting
x
x
x
with
1
1
1
.
h
′
(
1
)
=
1
2
1
=
1
2
h'(1) = \frac{1}{2\sqrt{1}} = \frac{1}{2}
h
′
(
1
)
=
2
1
1
=
2
1
.
Use Product Rule Formula:
Now, use the values
g
(
1
)
=
−
2
g(1)=-2
g
(
1
)
=
−
2
,
g
′
(
1
)
=
7
g'(1)=7
g
′
(
1
)
=
7
, and
h
′
(
1
)
=
1
2
h'(1)=\frac{1}{2}
h
′
(
1
)
=
2
1
in the product rule formula.
Apply Product Rule:
Apply the product rule:
F
′
(
x
)
=
g
′
(
x
)
⋅
h
(
x
)
+
g
(
x
)
⋅
h
′
(
x
)
F'(x) = g'(x) \cdot h(x) + g(x) \cdot h'(x)
F
′
(
x
)
=
g
′
(
x
)
⋅
h
(
x
)
+
g
(
x
)
⋅
h
′
(
x
)
.
Substitute
x
x
x
in
F
′
(
x
)
F'(x)
F
′
(
x
)
:
Substitute
x
x
x
with
1
1
1
to find
F
′
(
1
)
F'(1)
F
′
(
1
)
:
F
′
(
1
)
=
g
′
(
1
)
⋅
h
(
1
)
+
g
(
1
)
⋅
h
′
(
1
)
F'(1) = g'(1)\cdot h(1) + g(1)\cdot h'(1)
F
′
(
1
)
=
g
′
(
1
)
⋅
h
(
1
)
+
g
(
1
)
⋅
h
′
(
1
)
.
Plug in Known Values:
Plug in the known values:
F
′
(
1
)
=
7
1
+
(
−
2
)
(
1
2
)
F'(1) = 7\sqrt{1} + (-2)\left(\frac{1}{2}\right)
F
′
(
1
)
=
7
1
+
(
−
2
)
(
2
1
)
.
Calculate
F
′
(
1
)
F'(1)
F
′
(
1
)
:
Calculate the values:
F
′
(
1
)
=
7
⋅
1
+
(
−
2
)
⋅
(
1
2
)
=
7
−
1
F'(1) = 7\cdot1 + (-2)\cdot(\frac{1}{2}) = 7 - 1
F
′
(
1
)
=
7
⋅
1
+
(
−
2
)
⋅
(
2
1
)
=
7
−
1
.
Finish Calculation:
Finish the calculation:
F
′
(
1
)
=
7
−
1
=
6
F'(1) = 7 - 1 = 6
F
′
(
1
)
=
7
−
1
=
6
.
More problems from Evaluate exponential functions
Question
A
13
k
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13 \mathrm{~km}
13
km
stretch of road needs repairs. Workers can repair
3
1
2
k
m
3 \frac{1}{2} \mathrm{~km}
3
2
1
km
of road per week.
\newline
How many weeks will it take to repair this stretch of road?
\newline
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Liam opened a savings account and deposited
$
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\$ 6000
$6000
. The account earns
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%
5 \%
5%
in interest annually. He makes no further deposits and does not withdraw any money. In
t
t
t
years, he has
$
8865
\$ 8865
$8865
in this account.
\newline
Write an equation in terms of
t
t
t
that models the situation.
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Question
Samantha opened a savings account and deposited
$
8192
\$ 8192
$8192
. The account earns
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%
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10%
in interest annually. She makes no further deposits and does not withdraw any money. In
t
t
t
years, she has
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,
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\$ 25,710
$25
,
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\newline
Write an equation in terms of
t
t
t
that models the situation.
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Question
The graph of a sinusoidal function intersects its midline at
(
0
,
−
7
)
(0,-7)
(
0
,
−
7
)
and then has a minimum point at
(
π
4
,
−
9
)
\left(\frac{\pi}{4},-9\right)
(
4
π
,
−
9
)
.
\newline
Write the formula of the function, where
x
x
x
is entered in radians.
\newline
f
(
x
)
=
f(x)=
f
(
x
)
=
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Question
The following formula is used in economics to find a company's gross profit rate
P
P
P
, where
S
S
S
is the net sales and
C
C
C
is the cost of goods sold.
\newline
P
=
S
−
C
S
P=\frac{S-C}{S}
P
=
S
S
−
C
\newline
Rearrange the formula to highlight the cost of goods sold.
\newline
C
=
□
C=\square
C
=
□
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Posted 10 months ago
Question
3
⋅
5
0.2
w
=
720
3 \cdot 5^{0.2 w}=720
3
⋅
5
0.2
w
=
720
\newline
What is the solution of the equation?
\newline
Round your answer, if necessary, to the nearest thousandth.
\newline
w
≈
w \approx
w
≈
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Question
18
⋅
2
5
t
=
261
18 \cdot 2^{5 t}=261
18
⋅
2
5
t
=
261
\newline
What is the solution of the equation?
\newline
Round your answer, if necessary, to the nearest thousandth.
\newline
t
≈
t \approx
t
≈
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Question
−
4
⋅
3
6
w
=
−
1750
-4 \cdot 3^{6 w}=-1750
−
4
⋅
3
6
w
=
−
1750
\newline
What is the solution of the equation?
\newline
Round your answer, if necessary, to the nearest thousandth.
\newline
w
≈
w \approx
w
≈
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Question
20
⋅
7
3
y
=
5
20 \cdot 7^{3 y}=5
20
⋅
7
3
y
=
5
\newline
What is the solution of the equation?
\newline
Round your answer, if necessary, to the nearest thousandth.
\newline
y
≈
y \approx
y
≈
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Question
10
⋅
3
5
t
4
=
800
10 \cdot 3^{\frac{5 t}{4}}=800
10
⋅
3
4
5
t
=
800
\newline
What is the solution of the equation?
\newline
Round your answer, if necessary, to the nearest thousandth.
\newline
t
≈
t \approx
t
≈
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Posted 10 months ago
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