Exponential Functions Algebra Practice

What is a, the starting term, for the function: f(x) = 300(1.16)^x?

• 300
• 1.16
• .16
• x

A population of 2200 beetles is too large to sustain and decreases in population each month at a rate of 5%. Which functions represents this scenario?

• y = 2200 (1.05)^x

• y = 5 (1.22)^x

• y = 2200 (.95)^x

• y = 2200 (.05)^x

Which of the following functions shows an initial amount of $15 and an increase of 35% each year?

• y = 15(35)^x
• y = 15(1.35)^x
• y = 15(0.35)^x
• y = 35(1.15)^x

Classify the model as Exponential GROWTH or DECAY.
A=1200(.85)⁶

• Growth
• Decay

Classify the model as Exponential GROWTH or DECAY.
A=10(1.01)³

• Growth
• Decay

Is this exponential growth or decay?

• Growth
• Decay

The number of mosquitoes at the beginning of the summer was 4,000. The population of mosquitoes is expected to grow at a rate of 25% a month. How many mosquitoes will there be after 4 years?

• 97.66

• 1265

• 9766

• 5433

Twenty years ago, Mr. Davis purchased his home for $160,000. Since then, the value of the home has increased about 5% per year. How much is the home worth today?

• $176,783.29

• $424,527.63

• $57,357.75

• $532,041,076.80

Is the graph linear, exponential or neither?

• Linear
• Exponential
• Neither

Which function represents the table of values? 

• f(x) = 4x
• f(x) = x³
• f(x) = 4^x
• f(x) = 4^x-1