Math Problem Statement

Graph the exponential function y = 0.5(6)^x. Identify the y-intercept.

Solution

The problem asks for the y-intercept of the exponential function y=0.5(6)xy = 0.5(6)^x.

Solution:

The y-intercept occurs when x=0x = 0. Substituting x=0x = 0 into the equation:

y=0.5(6)xy = 0.5(6)^x

y=0.5(6)0y = 0.5(6)^0

Since 60=16^0 = 1:

y=0.5×1=0.5y = 0.5 \times 1 = 0.5

Final Answer:

The y-intercept is 0.5.

Would you like a step-by-step graphing explanation or have any questions?


Here are 5 related questions to expand your understanding:

  1. What is the significance of the base 66 in the function y=0.5(6)xy = 0.5(6)^x?
  2. How does the coefficient 0.50.5 affect the graph of the exponential function?
  3. What happens to the y-intercept if the coefficient changes to 11?
  4. How would the graph look if the base were less than 11 (e.g., y=0.5(0.6)xy = 0.5(0.6)^x)?
  5. How do you find the y-intercept for more complex functions like y=0.5(6)x2+1y = 0.5(6)^{x-2} + 1?

Tip:

Remember, for any function, the y-intercept is found by substituting x=0x = 0 into the equation.

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Math Problem Analysis

Mathematical Concepts

Exponential Functions
Y-Intercepts

Formulas

y = a(b)^x
Y-intercept occurs at x = 0

Theorems

Properties of Exponents

Suitable Grade Level

Grades 9-11