Math Problem Statement

Graph the given functions, f(x) = √x and g(x) = √x + 5, in the same rectangular coordinate system. Use the integer values of x (0, 1, 4, 9) to obtain ordered pairs. Describe how the graph of g is related to the graph of f.

Solution

Let's analyze the problem presented in the image:

We are given two functions:

  1. f(x)=xf(x) = \sqrt{x}
  2. g(x)=x+5g(x) = \sqrt{x} + 5

You are asked to:

  • Use integer values of xx from the given set {0,1,4,9}\{0, 1, 4, 9\} to find ordered pairs for both functions.
  • Graph the functions in the same rectangular coordinate system.
  • Describe how the graph of g(x)g(x) is related to the graph of f(x)f(x).

Step 1: Calculate the ordered pairs for f(x)f(x) and g(x)g(x)

For f(x)=xf(x) = \sqrt{x}:

  • f(0)=0=0f(0) = \sqrt{0} = 0
  • f(1)=1=1f(1) = \sqrt{1} = 1
  • f(4)=4=2f(4) = \sqrt{4} = 2
  • f(9)=9=3f(9) = \sqrt{9} = 3

So, the ordered pairs for f(x)f(x) are:

  • (0,0),(1,1),(4,2),(9,3)(0, 0), (1, 1), (4, 2), (9, 3)

For g(x)=x+5g(x) = \sqrt{x} + 5:

  • g(0)=0+5=0+5=5g(0) = \sqrt{0} + 5 = 0 + 5 = 5
  • g(1)=1+5=1+5=6g(1) = \sqrt{1} + 5 = 1 + 5 = 6
  • g(4)=4+5=2+5=7g(4) = \sqrt{4} + 5 = 2 + 5 = 7
  • g(9)=9+5=3+5=8g(9) = \sqrt{9} + 5 = 3 + 5 = 8

So, the ordered pairs for g(x)g(x) are:

  • (0,5),(1,6),(4,7),(9,8)(0, 5), (1, 6), (4, 7), (9, 8)

Step 2: Graphing the functions

The graph of g(x)=x+5g(x) = \sqrt{x} + 5 is a vertical translation of the graph of f(x)=xf(x) = \sqrt{x}. Specifically, the graph of g(x)g(x) is shifted 5 units upward from the graph of f(x)f(x). This is because adding a constant (in this case, 5) to the function shifts it vertically.

Conclusion:

The graph of g(x)g(x) is the same shape as the graph of f(x)f(x), but every point on the graph of g(x)g(x) is shifted 5 units higher than the corresponding point on the graph of f(x)f(x).

Would you like me to graph these functions or provide further details? Here are some additional related questions:

  1. What is the domain of both f(x)f(x) and g(x)g(x)?
  2. How would the graph change if g(x)=x5g(x) = \sqrt{x} - 5?
  3. Can the functions f(x)f(x) and g(x)g(x) ever intersect?
  4. How would you modify the equation to shift the graph of f(x)f(x) 5 units to the right instead?
  5. What are some real-world applications of square root functions?

Tip: When graphing, shifts like +5+5 or 5-5 are vertical translations; similarly, terms added or subtracted inside the square root (e.g., xh\sqrt{x - h}) result in horizontal shifts.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Algebra
Functions
Square Roots
Graphing

Formulas

f(x) = √x
g(x) = √x + 5

Theorems

Vertical Translation of Functions

Suitable Grade Level

Grades 8-10