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Exponential To Logarithm and vice versa
Transformations of Logarithm Graphs
100

log(xy)

log(x)+log(y)

100

5logx+5logy

log(xy)5

100

log100.000001

-6

100

Convert 312 = 531441 into a logarithm. Make sure to use the proper wordage when giving your answer.

log3(531441)= 12 

"Log base 3 of 531,441 equals 12"

100

What is the domain and range of the following logarithmic function?

f(x) = log2x

Domain- (0, ∞)

Range- (-∞, ∞)

200

log(xzw)7

7log(x)+7log(z)+7log(w)

200

5log(x)+log(y)-log(z)

log(x5y/z)

200

log3243

5

200

Convert the following into an exponential function: log5(1/3125) = x

5x= 1/3125

200

If I asked you to graph f(x) = log2x using it's exponential inverse, how would you do it?

Find points for the inverse function f-1(x) = 2x. Flip the points so that my old xs become my new ys and vice versa. Then plot and connect the new points.

300

log4xy3

log4x+3log4y

300

6log(x)+4log(x)-7log(x)

log(x)3

300

log927

3/2

300

If e4/5 = 2.225 approximately. Write this expression as a logarithm. Make sure to use the proper wordage when giving your answer.

ln(2.225) = 4/5

"The natural log of 2.225 equals 4/5"

300

What does the a value do to the graph of a logarithm when it is negative?

Flips/reflects the graph over the x-axis

400

log(xy/zw)

log(x)+log(y)-log(z)-log(w)

400

5log(x)-6log(y)-7log(x)

log(1/y6x2)

400

log0.2564

-3

400

Convert the following into an exponential function: log4x = 4

Then, solve for x.

44= x

x = 256

400

Describe the following transformations of this logarithmic expression:

f(x) = log3(x-5)

The graph moves to the right 5 units

500

log(4x/y5)

log(4)+log(x)-5log(y)

500

3/2log(x4)+2/3log(y6)

log(x6y4)

500

log1.60.625

-1

500

When a logarithm has no base written as a subscript, what do we assume that value is?

10

500

Describe the following transformations of this logarithmic expression:

f(x) = 2log7x + 8

The graph stretches by a factor of 2 and the graph moves up 8 units

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