Math Problem Statement

Which equation is modeled by the graph?

Solution

To determine which equation matches the graph, we analyze the given graph and the provided equations. Here's how:

Observations from the Graph:

  1. Behavior of the Graph:

    • The graph shows exponential growth, as it rapidly increases for positive xx-values and approaches 0 for negative xx-values.
  2. Key Point(s):

    • The graph passes through (0,10)(0, 10). This indicates that the initial value (or the coefficient aa) is 1010, since y=abxy = a \cdot b^x and at x=0x = 0, y=ay = a.
  3. Base of the Exponential Function:

    • The growth rate implies a base greater than 1, and the only base provided in the options is 44. Thus, the function must take the form y=10(4x)y = 10(4^x).

Answer:

The correct equation is: y=10(4x)\boxed{y = 10(4^x)}


Would you like to explore further or need help plotting exponential functions?
Here are 5 related questions to expand your understanding:

  1. How does the initial value aa affect the graph of an exponential function?
  2. What does the base bb in y=abxy = a \cdot b^x represent, and how does it change the graph?
  3. What happens to the graph if aa is negative?
  4. How can you determine the equation of an exponential function from a graph with two points?
  5. What does the horizontal asymptote represent in an exponential graph?

Tip: For x=0x = 0, the yy-intercept gives the value of aa, making it a quick way to identify the initial coefficient of an exponential function.

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Math Problem Analysis

Mathematical Concepts

Exponential Functions
Graph Analysis

Formulas

y = a * b^x

Theorems

Exponential Growth Theorem

Suitable Grade Level

Grades 9-11