Log Equations

Rewrite the logarithm in exponential form:
 $\log_yx=10$  

•  $y^{10}=x$  

•  $x^{10}=y$  

•  $10^y=x$  

•  $y^x=10$  

Tags

CCSS.HSF.BF.B.5

Rewrite the logarithm in exponential form:
 $\log_x25=3$  

•  $x^3=25$  

•  $3^x=25$  

•  $25^3=x$  

•  $25^x=3$  

Tags

CCSS.HSF.BF.B.5

Convert to log form: $3^x=y$  

•  $\log_3x=y$  

•  $\log_3y=x$  

•  $\log_xy=3$  

•  $\log_yx=3$  

Tags

CCSS.HSF.BF.B.5

Write the exponential equation as a logarithm
6³=216

• log₆(3) = 216
• log₃(6) = 216
• log₆(216)=3
• log₂₁₆(6)=3

Tags

CCSS.HSF.BF.B.5

What is f(-1)?

• 6
• -2
• sqrt(2)
• DNE

Tags

CCSS.HSF.IF.A.2

What is f(x) when x equals 4?

• -5

• 0

• 3

• 6

Tags

CCSS.HSF.IF.A.2

Solve. Select BOTH solutions.
 $\left|1-9x\right|=80$ 

•  $-\frac{79}{9}$  

•  $10$  

•  $-9$  

•  $9$  

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.REI.A.1

Solve. Select BOTH solutions.
 $\left|-4+x\right|=10$  

•  $6$  

•  $14$  

•  $\frac{5}{2}$  

•  $-6$  

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.REI.A.1

6(2x -1) ≥ 3(4x + 1)

• All Real Numbers

• No Solution

• x ≥ 3/8

• x ≤ -3/8

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3

CCSS.HSA.REI.A.1

4|5x-2|+7>39

• -6/5 < x > 2
• x=2 or x=-6/5
• x=2 and x=-6/5
• x < -6/5 or x > 2

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.REI.B.3