Math Problem Statement

The function f is defined by f(x) = 3x - 5. Find f(x + 1).

Solution

To solve for f(x+1)f(x+1), given that f(x)=3x5f(x) = 3x - 5:

  1. Substitute x+1x+1 for xx in the expression for f(x)f(x): f(x+1)=3(x+1)5f(x+1) = 3(x+1) - 5

  2. Expand and simplify: f(x+1)=3x+35=3x2f(x+1) = 3x + 3 - 5 = 3x - 2

So, f(x+1)=3x2f(x+1) = 3x - 2.

Would you like more details on this process, or do you have any questions?

Here are some related questions:

  1. How do we evaluate f(x+a)f(x + a) for a general value of aa?
  2. What is the significance of function transformations in this context?
  3. How would f(x)=3x5f(x) = 3x - 5 change if we modified the coefficient of xx?
  4. Can you find f(x1)f(x-1) using the same method?
  5. How does this function behave as xx approaches infinity?

Tip: When substituting in functions, carefully replace every instance of xx with the new expression to avoid errors.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Algebra
Function Evaluation

Formulas

f(x) = 3x - 5

Theorems

-

Suitable Grade Level

Grades 7-9