Math Problem Statement

From x = 0 to x = 2, which of the following best describes the growth of the two functions below?

Solution

The two graphs you uploaded represent the functions:

  • y=5xy = 5x (linear growth) on the left
  • y=5xy = 5^x (exponential growth) on the right

Let's break down the growth between x=0x = 0 and x=2x = 2:

  1. For y=5xy = 5x: This is a linear function where the value of yy increases by 5 for each unit increase in xx.

    • At x=0x = 0, y=0y = 0
    • At x=2x = 2, y=10y = 10 The growth is constant and predictable.
  2. For y=5xy = 5^x: This is an exponential function, where the value of yy increases by multiplying 5 for each unit increase in xx.

    • At x=0x = 0, y=50=1y = 5^0 = 1
    • At x=2x = 2, y=52=25y = 5^2 = 25 The growth rate increases more rapidly.

Comparing Growth:

From x=0x = 0 to x=2x = 2, the exponential function y=5xy = 5^x grows faster than the linear function y=5xy = 5x. This is evident because y=5xy = 5x reaches 10 at x=2x = 2, whereas y=5xy = 5^x reaches 25.

Correct Answer:

  • y=5xy = 5x grows slower than y=5xy = 5^x.

Would you like further details or have any questions?


Here are five related questions to extend your understanding:

  1. How does the slope of a linear function like y=5xy = 5x relate to its growth?
  2. What would happen to the exponential growth if the base of the exponent changed from 5 to 2 in y=5xy = 5^x?
  3. Can you determine the point where y=5xy = 5^x overtakes y=5xy = 5x for larger values of xx?
  4. How does the concept of "exponential growth" apply in real-world scenarios like population growth?
  5. How would the graph change if the linear function had a different slope, such as y=2xy = 2x?

Tip: When comparing functions, always pay attention to whether they exhibit linear, exponential, or logarithmic growth patterns, as these grow at very different rates over time.

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Math Problem Analysis

Mathematical Concepts

Algebra
Functions
Linear Growth
Exponential Growth

Formulas

y = 5x
y = 5^x

Theorems

Growth Comparison between Linear and Exponential Functions

Suitable Grade Level

Grades 8-10