Unit 2 Practice Test

• ln(-4)

• no real solution

• 17

• 20

• 15

• 25

Tags

CCSS.HSF.LE.A.4

A scientist observes a culture that begins with 2.5 million bacteria. The bacteria population grows continuously at a rate of 6% per minute. In how many minutes will the population reach 7.5 million bacteria? Round your answer to the nearest whole number.

• 18

• 28

• 12

• 15

Tags

CCSS.HSF.LE.A.4

A biologist starts with a sample containing 4 million bacteria. The bacteria population increases continuously at a rate of 8% per minute. In how many minutes will the population reach 12 million bacteria? Round your answer to the nearest whole number.

• 14

• 16

• 15

• 13

Tags

CCSS.HSF.LE.A.4

The value of a rare comic book is modeled by the equation 300 = 50e^3k, where 300 is the current value and 3 is the number of months since purchase. Which of the following best represents the appreciation rate, k?

• 0.80

• 0.60

• 1.20

• 1.10

Which of the following is equivalent to the equation below? 64 = 4ʸ

• log₄ y = 64

• log₆₄ 4 = y

• log₄ 64 = y

• log₄ 4 = 64

Tags

CCSS.HSF.BF.B.5

Which graph represents the function f(x) = log(x+4) - 2?

• Graph A

• Graph B

• Both Graphs

• Neither Graph

Tags

CCSS.HSF-IF.C.7E

Which equation is equivalent to log_x 125 = 3?

• 3⁵ = 125

• 125³ = x

• x³ = 125

• x¹²⁵ = 3

Tags

CCSS.HSF.BF.B.5

Condense the following logarithmic expression. 2log₄(m) + 3log₄(n) - log₄(p)

• log₄(m² n³ p)

• log₄(5mnp)