Find Rate Of Change Of Exponential Functions Over Unit Intervals Worksheet

Algebra 2
Exponential Functions

Total questions - 6

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How Will This Worksheet on "Find Rate of Change of Exponential Functions Over Unit Intervals" Benefit Your Student's Learning?

  • Helps students understand exponential functions related to population growth and radioactive decay.
  • Builds a foundation for learning derivatives and integrals, essential for advanced calculus.
  • Encourages analytical thinking and problem-solving using math.
  • Simplifies interpreting exponential graphs, crucial for visualizing functions.
  • Prepares students for science courses involving exponential functions, such as physics and biology.
  • Enhances accuracy in math calculations and understanding of rates of change.

How to Find Rate of Change of Exponential Functions Over Unit Intervals?

  • Evaluate the exponential function at the starting and ending points of the interval.
  • Compute the ratio of the function value at the endpoint to the function value at the starting point.
  • Determine how many times the function value at the endpoint is greater than the function value at the starting point. This ratio represents the change factor.
  • The calculated ratio signifies the rate of change of the exponential function over that interval.

Solved Example

Q. How does g(x)=8xg(x)= 8^x change over the interval from x=3x = 3 to x=4x = 4?\newlineChoices:\newline(A) g(x)g(x) increases by 800%800\%\newline(B) g(x)g(x) decreases by 88\newline(C) g(x)g(x) increases by 8%8\%\newline(D) g(x)g(x) increases by a factor of 88
Solution:
  1. Calculate g(33): Calculate g(3) g(3) .\newlineg(3)=83 g(3) = 8^3 \newlineg(3)=512 g(3) = 512
  2. Calculate g(44): Calculate g(4) g(4) .\newlineg(4)=84 g(4) = 8^4 \newlineg(4)=4096 g(4) = 4096
  3. Find the ratio: Find the ratio g(4)g(3) \frac{g(4)}{g(3)} .\newlineg(4)g(3)=4096512 \frac{g(4)}{g(3)} = \frac{4096}{512} \newlineg(4)g(3)=8 \frac{g(4)}{g(3)} = 8
  4. Determine the change: \newlineSince the ratio is 88, g(x) g(x) increases by a factor of 88.
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About Worksheet

Algebra 2
Exponential Functions

To determine the rate of change of an exponential function \( f(x) = a \cdot b^x \) over a unit interval from \( x \) to \( x+1 \), find the ratio `\frac{f(x+1)}{f(x)} = b`. This ratio \( b \) signifies how much the function value changes when \( x \) increases by `1`, revealing the growth or decay factor inherent to the exponential function over successive increments. Explore worksheets to understand this concept better.

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