Math Problem Statement

Select the correct answer from each drop-down menu. Consider the function f(x) = 3x + 1 and the graph of the function g(x) shown below.

A coordinate plane linear graph function shows a line intersecting Y-axis at minus 5 and X-axis at 1.5.

The graph g(x) is the graph of f(x) translated units , and g(x) = .

Solution

Let's break down the problem:

  1. Function f(x)=3x+1f(x) = 3x + 1: This is a linear function with a slope of 3 and a y-intercept of 1.

  2. Graph of g(x)g(x): From the description, the graph of g(x)g(x) intersects the y-axis at -5 and the x-axis at 1.5 (or 32\frac{3}{2}).

Now, let's analyze what this implies:

  • Translation of the y-intercept: The function f(x)f(x) has a y-intercept of 1, while g(x)g(x) has a y-intercept of -5. This suggests a vertical translation. The shift in the y-direction is from 11 to 5-5, which is a shift downward by 6 units.

  • Slope of g(x)g(x): The slope remains the same because the description does not mention any change in the steepness of the graph. Thus, the slope of g(x)g(x) is still 3.

Translation in terms of units:

The function f(x)=3x+1f(x) = 3x + 1 is translated 6 units down to get the function g(x)g(x).

Function g(x)g(x):

Since the slope of the graph is unchanged, and the y-intercept has shifted to -5, the equation for g(x)g(x) is g(x)=3x5g(x) = 3x - 5.

Final answers:

  1. The graph g(x)g(x) is the graph of f(x)f(x) translated 6 units down.
  2. g(x)=3x5g(x) = 3x - 5.

Would you like further details or have any questions?

Here are some related questions to expand on this:

  1. How can we determine the slope of a line from its graph?
  2. What is the general form of a linear function, and how can we modify it for translations?
  3. How do vertical and horizontal translations affect the graph of a function?
  4. What are the differences between vertical and horizontal translations in linear functions?
  5. How do you solve for x-intercepts and y-intercepts algebraically?

Tip: When translating graphs, remember that vertical shifts affect only the y-intercept, while horizontal shifts affect the x-values.

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Math Problem Analysis

Mathematical Concepts

Linear Functions
Graph Translations

Formulas

Linear function formula: f(x) = mx + b
Translation of functions: vertical translation f(x) ± c

Theorems

Translation of Graph Theorem

Suitable Grade Level

Grades 8-10