Unit 4: Exponential and Logarithm Functions

Rewrite log_pt = m in exponential form.

• p^t = m
• t^m = p
• m^t = p
• p^m = t

Tags

CCSS.HSF.BF.B.5

Rewrite 3⁴ = 81 in logarithmic form.

• log₃4 = 81
• log₈₁3 = 4
• log₃81 = 4
• log₄81 = 3

Tags

CCSS.HSF.BF.B.5

In an exponential function, what does the 'a' represent? 

• SLOPE
• RATE OF CHANGE
• Y-INTERCEPT
• COMMON RATIO

Tags

CCSS.HSF.LE.B.5

Find the rate of change of [-2,0] and [5,8]

f(x)= 3x+9 (click all answers that apply)

• [-2,0] = 3

• [-2,0] = .28

• [5,8] = 3

• [5,8] = 6.01

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Solve for x:

log₃(2x-1)=2

• x=7.7

• x=3

• x=5

• x=√7.7

Tags

CCSS.HSF.BF.B.5

Evaluate each Logarithm for f(25).
 $\log_5x$  

• .70

• 2

• 9765625

• 20

Solve:

6^x+3=2^2x+5

• x=-4.71

• x=4.71

• x=.664

• x=-.664

You invest $1600 at an annual interest rate of 4.6% compounded continuously. Using $A=Pe^{rt}$ , find how much will you have in the account after 4 years.

• $800.26

• $6,701.28

• $10,138.07

• $1,923.23

The half life of Sodium-22 is 2.6 years. Using y=ae^kt, solve for the value of k.

• About -.0001

• About .0175

• About .2666

• About .0003

Evaluate the function for f(40)

f(x) = 10 * log₈(x+50)-50

• About 4.62

• About 1.32

• About 15

• About -28.4

Tags

CCSS.HSF.IF.A.2