Math Problem Statement

Graph the exponential function g(x) = (3/5)^x and explain its behavior.

Solution

The task requires graphing the exponential function:

g(x)=(35)xg(x) = \left(\frac{3}{5}\right)^x

To do this, let us calculate values of g(x)g(x) for a set of xx-values to plot five points on the graph. I'll use typical points near zero to illustrate the behavior of the exponential function.

Calculations:

  1. When x=2x = -2:
    g(2)=(35)2=(53)2=2592.78g(-2) = \left(\frac{3}{5}\right)^{-2} = \left(\frac{5}{3}\right)^2 = \frac{25}{9} \approx 2.78

  2. When x=1x = -1:
    g(1)=(35)1=531.67g(-1) = \left(\frac{3}{5}\right)^{-1} = \frac{5}{3} \approx 1.67

  3. When x=0x = 0:
    g(0)=(35)0=1g(0) = \left(\frac{3}{5}\right)^0 = 1

  4. When x=1x = 1:
    g(1)=(35)1=350.6g(1) = \left(\frac{3}{5}\right)^1 = \frac{3}{5} \approx 0.6

  5. When x=2x = 2:
    g(2)=(35)2=9250.36g(2) = \left(\frac{3}{5}\right)^2 = \frac{9}{25} \approx 0.36

Plot Points:

The calculated points are: (2,2.78),(1,1.67),(0,1),(1,0.6),(2,0.36)(-2, 2.78), \, (-1, 1.67), \, (0, 1), \, (1, 0.6), \, (2, 0.36)

Graph Behavior:

  • The function g(x)g(x) decreases as xx increases because the base 35\frac{3}{5} is less than 1.
  • For negative xx, the function grows since it effectively flips the base to 53\frac{5}{3} due to the negative exponent.

Would you like me to create a visualization of the graph or elaborate on the steps?


5 Related Questions:

  1. What does it mean for an exponential function when the base is less than 1?
  2. How do negative exponents affect the graph of a function?
  3. How can transformations like vertical shifts impact the graph of g(x)g(x)?
  4. Why is g(0)g(0) always 1 for any exponential function axa^x?
  5. How do we interpret the asymptote of g(x)=(35)xg(x) = \left(\frac{3}{5}\right)^x?

Tip:

When plotting exponential functions, focus on how the base affects growth or decay and remember symmetry for negative exponents.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Exponential Functions
Graphing Functions
Negative Exponents

Formulas

g(x) = (3/5)^x
g(-2) = (5/3)^2
g(-1) = 5/3
g(0) = 1
g(1) = 3/5
g(2) = (3/5)^2

Theorems

Exponentiation with negative exponents
Behavior of exponential functions with a base less than 1

Suitable Grade Level

Grades 9-11