Precalculus Logarithms

Write as a single log: log 12 + 2 log x

• log (12 + 2x)

• log (14x)

• log (12 * 2x)

• log (12x²)

Solve for x:

log₈(4x+4)=2

• 15

• 12

• 10

• 3

Solve for x:

log₅ (x + 3) = log₅ x + log₅ 3

• 3/2

• 9/2

• 2/3

• No Solution

log (x - 1) - log (x - 2) = log 5

• 7

• 4/9

• 9/4

• 1/7

What is the correct transformed equation for the graph?

• y = log(x - 4)

• y = log(x) - 4

• y = log(x + 4)

• y = log(x) + 4

Which graph matches the logarithmic equation

• 
• 
• 
• 

log₂(x + 2)  = 3 - log₂x

• -4, 2

• -2, 4

• 2

• 4

Write the expression as a single logarithm.   Then simplify if possible.
log 6 - log 3 + 2 log 7

• log 98

• log 78

• log 56

• log 45