Algebra 6.4A

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

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

Tags

CCSS.HSF.LE.B.5

What is a, the starting term, for the function: f(x) = 800(0.85)^x?

• 800
• 0.85
• 0.15
• x

Tags

CCSS.HSF.LE.B.5

A population of 2200 beetles is too large to sustain and decreases in population each month at a rate of 5%. How would you write your decay factor (what is inside the parentheses), b?

• -5

• -.05

• .95

• .05

The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the decay factor (what is inside the parentheses)?

• ^.08

• ^1.08

• .92

• 8

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

• y = 15(35)^t

• y = 15(1.35)^t

• y = 15(0.35)^t

• y = 35(1.15)^t

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

What is the decay rate in the following model?

A=1200(.85)⁶

• 1200%

• 15%

• .15%

• 6%

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

• Exponential Growth
• Exponential Decay
• Linear
• None

What type of function is y = 7(5/4)^t?

• Exponential Growth

• Exponential Decay

• Linear

• None of the above