Rearranging Formulas to Highlight Quantities
Algebra 2 · Flashcards
ALGEBRA 2 · FLASHCARDS
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QUESTION
What is
x
x
x
when you solve
y
=
(
a
x
+
b
)
2
y = (ax + b)^2
y
=
(
a
x
+
b
)
2
for
x
x
x
(with
a
≠
0
a \ne 0
a
=
0
)?
QUESTION
What is
P
P
P
when you solve
A
=
P
(
1
+
r
t
)
A = P(1 + rt)
A
=
P
(
1
+
r
t
)
for
P
P
P
(assume
1
+
r
t
≠
0
1+rt \ne 0
1
+
r
t
=
0
)?
QUESTION
What is
x
x
x
when you solve
y
=
log
b
(
x
)
y = \log_b(x)
y
=
lo
g
b
(
x
)
for
x
x
x
(assume
b
>
0
b>0
b
>
0
,
b
≠
1
b\ne 1
b
=
1
)?
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ANSWER
x
=
b
y
x = b^y
x
=
b
y
. Apply the definition of logarithms:
log
b
(
x
)
=
y
\log_b(x) = y
lo
g
b
(
x
)
=
y
means
b
y
=
x
b^y = x
b
y
=
x
.
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