Math Problem Statement

explanations

Which table gives three values of x and their corresponding values of q(x) for function q(x) = 15(3^x)?

Solution

To solve this problem, we need to evaluate the function q(x)=15×3xq(x) = 15 \times 3^x for the values x=1x = -1, x=0x = 0, and x=1x = 1 to see which table matches the results.

Step-by-Step Calculation:

  1. For x=1x = -1: q(1)=15×31=15×13=5q(-1) = 15 \times 3^{-1} = 15 \times \frac{1}{3} = 5

  2. For x=0x = 0: q(0)=15×30=15×1=15q(0) = 15 \times 3^0 = 15 \times 1 = 15

  3. For x=1x = 1: q(1)=15×31=15×3=45q(1) = 15 \times 3^1 = 15 \times 3 = 45

Summary of Results:

  • q(1)=5q(-1) = 5
  • q(0)=15q(0) = 15
  • q(1)=45q(1) = 45

Matching with the Options:

Now, let's compare these values to the tables provided in the image.

  • Option A: Does not match, as it lists q(1)=45q(-1) = -45, q(0)=0q(0) = 0, and q(1)=45q(1) = 45.
  • Option B: Does not match, as it lists q(1)=15q(-1) = \frac{1}{5}, q(0)=3q(0) = 3, and q(1)=45q(1) = 45.
  • Option C: Does not match, as it lists q(1)=15q(-1) = \frac{1}{5}, q(0)=15q(0) = 15, and q(1)=45q(1) = 45.
  • Option D: Matches, as it lists q(1)=5q(-1) = 5, q(0)=15q(0) = 15, and q(1)=45q(1) = 45.

Conclusion:

The correct answer is Option D.

Would you like further clarification on any step? Here are some additional questions you might consider:

  1. How is exponential growth reflected in the function q(x)=15×3xq(x) = 15 \times 3^x?
  2. What would happen to the function if the base changed from 3 to another number?
  3. Why does q(0)q(0) equal the initial multiplier, 15, in this function?
  4. How does changing the exponent value (e.g., from xx to 2x2x) affect the output values?
  5. What is the impact of a negative exponent on the value of the function?

Tip: When working with exponential functions, remember that negative exponents create fractional values (as seen with 31=133^{-1} = \frac{1}{3}).

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Math Problem Analysis

Mathematical Concepts

Exponential Functions
Function Evaluation

Formulas

q(x) = 15 * 3^x

Theorems

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Suitable Grade Level

Grades 9-10