Math Problem Statement

Find an equation for the graph sketched below:

Solution

The uploaded image displays a graph with an exponential growth curve. To find the equation for the given graph, I will analyze the curve to deduce its mathematical form.

Observations:

  1. The curve passes through the origin (approximately at x=0,y=1x = 0, y = 1).
  2. The graph exhibits exponential growth.
  3. The general form of an exponential function is: f(x)=abxf(x) = a \cdot b^x where:
    • aa is the initial value (y-intercept).
    • bb is the base (rate of growth or decay).

Key points to consider:

  • When x=0x = 0, f(x)=af(x) = a, which indicates a=1a = 1 since the y-intercept is 1.
  • To determine bb, observe another point on the graph, such as x=1x = 1 and its corresponding yy-value.

Let me extract the equation for the graph from these details. sympy import symbols, Eq, solve

Define the variables

x = symbols('x') a, b = 1, symbols('b') # a = 1 from the graph's intercept

The function is f(x) = a * b^x. We need another point to solve for b.

From the graph, at x = 1, f(x) (y-value) appears to be around 3.

equation = Eq(a * b**1, 3)

Solve for b

b_value = solve(equation, b)[0] b_valueFrom the graph and calculations, the base of the exponential function, bb, is determined to be 3. Therefore, the equation of the graph is:

f(x)=3xf(x) = 3^x

Would you like further details or have any additional questions?

Here are five related questions to expand on this concept:

  1. How does the base bb affect the shape of an exponential graph?
  2. What happens to the graph of f(x)=bxf(x) = b^x if b<1b < 1?
  3. Can you find the equation of an exponential decay graph using a similar method?
  4. How does adding a constant cc to f(x)=bx+cf(x) = b^x + c change the graph?
  5. What are the real-world applications of exponential growth functions?

Tip:

When working with exponential graphs, always check the points at x=0x = 0 and x=1x = 1 to deduce the parameters of the function.

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Math Problem Analysis

Mathematical Concepts

Exponential Functions
Graph Analysis

Formulas

f(x) = a * b^x

Theorems

Properties of Exponential Functions

Suitable Grade Level

Grades 9-12