Solving with logarithms and exponential equations

Evaluate:  $\log_x1024=5$  

• 4

• 5

• 8

•  $\frac{1}{4}$  

Tags

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

Evaluate:  $\log_{11}x=5$  

• 1

• 8694

• 161051

• 55

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

Evaluate:  $\log_3\left(0\right)=x$  

• 0

• 1

• -1

• No solution

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.IF.B.5

CCSS.HSF.LE.A.4

Evaluate:  $15^0=x$  

• No Solution

• 1

• 0

• 15

Tags

CCSS.6.EE.A.1

CCSS.6.EE.B.5

Rewrite:  $11^x=121$  

•  $\log_{11}x=121$  

•  $\log_{121}x=11$  

•  $\log_{11}121=x$  

•  $\log_x11=121$  

Tags

CCSS.HSA.SSE.B.3

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

Evaluate:  $11^x=121$  

• 2

• 11

• 8.14

• 5

Tags

CCSS.HSA.REI.A.1

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

Evaluate:  $9^x=8$  

• 134217728

• 43046721

• 0.946

• 1.057

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.4

 $2\left(7^x\right)=686$  

What would you do first to solve?

• Rewrite  $7^x$  in logarithmic form

• Multiply both sides by 2

• Take the square root of both sides

• Divide both sides by 2

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1

 $2\left(7^x\right)=686$  

Evaluate

• 3

• 13

• 11

• -13

Tags

CCSS.HSA.CED.A.1

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.4

Evaluate: $9^x+2=11$  

• 6

• 1

• -4

• 9

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.A.1