Quiz about G10 Exponents and Logarithms

Question 1

Find x: log₂(32) = x

Accepted Answer

x = 5

Answer

x = 16

Answer

x = 4

Answer

x = 6

Question 2

(k17)2

Accepted Answer

k34

Answer

k19

Answer

k15

Answer

2k17

Question 3

Simplify (-4r⁵)(2r⁸)

Accepted Answer

-8r13

Answer

-2r13

Answer

-8r40

Answer

-2y40

Question 4

Which expression is equivalent to the given?

Accepted Answer

Option A is correct

Answer

B.

Answer

C.

Answer

D.

Question 5

What type of function is f(x)=2(0.5)^x ?

Accepted Answer

Exponential Decay

Answer

Exponential Growth

Answer

Linear

Answer

None of the Abovee

Question 6

Is the pictured graph growth, decay, or linear or none?

Accepted Answer

Exponential Growth

Answer

Exponential Decay

Answer

Linear

Answer

None

Question 7

Solve: 7^-x = 49

Accepted Answer

x = -2

Answer

x = 1

Answer

x = -1

Answer

x = 2

Question 8

Solve: 2^x = 4^x+1

Accepted Answer

x = -2

Answer

x = 2

Answer

x = -3

Answer

x = 3

Question 9

Solve: 9^8-x = 27^x-3

Accepted Answer

x = 5

Answer

x = -5

Answer

x = 1/5

Answer

x = -1/5

Question 10

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

Accepted Answer

y=5000(0.7)^x

Answer

y=30(5000)^x

Answer

y=5000(1.3)^x

Answer

y=5000xx

Question 11

Bruno was given $2000 when he turned 3 years old. His parents invested it at a 2% interest rate compounded annually. No deposits or withdrawls were made. Which expression can be used to determine how much money Bruno had in the account when he turned 16?

Accepted Answer

2000(1+0.02)¹³

Answer

2000(1-0.02)¹³

Answer

2000(1+0.02)¹⁶

Answer

2000(1-0.02)¹⁶

Question 12

Write in logarithmic form.
2^-4 = ¹/₁₆

Accepted Answer

log₂(¹/₁₆) = -4

Answer

log_-4(¹/₁₆) = 2

Answer

log_-4 2 = ¹/₁₆

Answer

log₂(-4) = ¹/₁₆

G10 Exponents and Logarithms

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