Algebra 1-Exponentials

What is the rule for the exponential function?

• f(x) = 4(12)^x
• f(x) = 3(4)^x
• f(x) = 12(3)^x
• f(x) = 4(3)^x

Tags

CCSS.HSF.LE.A.2

Solve: 2^x = 4^x+1

• x = -2
• x = 2
• x = -3
• x = 3

Solve for p:
4^p+2 = 64

• p = -16/9
• p = 1
• p = 8
• p = 7/6

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

• x = 5
• x = -5
• x = 1/5
• x = -1/5

Tags

CCSS.HSF.BF.B.5

CCSS.HSF.LE.A.1

CCSS.HSF.LE.A.4

Solve for v. 

• v=1/5
• v = -3/7
• v = -1/4
• v = 7/3

A petri dish contains 20 bacteria.  Find the number of bacteria in the petri dish after 8 hours if the bacteria is tripling every hour.  

• 131,220 bacteria
• 10,240 bacteria
• 5.6 x 10¹⁵ bacteria
• 860,934,420 bacteria

Tags

CCSS.HSF.LE.A.4

Write an equation to represent the following scenario: The population of a small town increases by 15% every year.  If the population began with 730 people, how many people would there be in x year?

• y=730(1.15)^x
• y=1.15(730)^x
• y=730(15)^x
• y=730(.85)^x

Tags

CCSS.HSF.LE.A.2