What is the graph of f(x) = 5(2)^x?…

Mathematics Questions

What is the graph of f(x) = 5(2)^x?

Short Answer

The function f(x) = 5(2)^x has a y-intercept at (0, 5) and another point at (2, 20). These points illustrate the exponential growth of the function when plotted on a graph.

Step-by-Step Solution

Step 1: Identify the Function and Y-Intercept

The function in question is f(x) = 5(2)^x. To find the y-intercept, evaluate the function at x = 0. Doing this, we calculate:

  • f(0) = 5(2)^0 = 5 x 1 = 5.

Thus, the y-intercept is the point (0, 5).

Step 2: Calculate Another Point on the Graph

To further define the graph, evaluate the function at another point, which is x = 2. This will give us additional information about the behavior of the function. Calculate:

  • f(2) = 5(2)^2 = 5 x 4 = 20.

This means another point on the graph is (2, 20).

Step 3: Understand the Graph Representation

With the derived points from the function, we can represent the graph accurately. The key points identified are:

  • The y-intercept at (0, 5).
  • Another point at (2, 20).

These points can be plotted on a graph to visualize the behavior of the function f(x) = 5(2)^x, showcasing its exponential growth.

Related Concepts

Function

A mathematical relationship in which each input is related to exactly one output, often expressed in the form f(x) = y.

Y-Intercept

The point on a graph where the function crosses the y-axis, typically found by evaluating the function at x = 0.

Exponential Growth

A process where a quantity increases at a rate proportional to its current value, often modeled by functions of the form f(x) = a(b)^x, where b > 1.

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