Math Problem Statement

g(f(2)) f(x) = 4x+3, g(x) = x-7

Solution

To solve g(f(2))g(f(2)) where:

  • f(x)=4x+3f(x) = 4x + 3
  • g(x)=x7g(x) = x - 7

Step 1: Find f(2)f(2)

f(2)=4(2)+3=8+3=11f(2) = 4(2) + 3 = 8 + 3 = 11

Step 2: Now substitute f(2)=11f(2) = 11 into g(x)g(x)

g(f(2))=g(11)=117=4g(f(2)) = g(11) = 11 - 7 = 4

So, g(f(2))=4g(f(2)) = 4.

Would you like further explanation or have any questions?

Here are some related problems to practice:

  1. Find g(f(3))g(f(3)) given f(x)=4x+3f(x) = 4x + 3 and g(x)=x7g(x) = x - 7.
  2. If h(x)=2x+1h(x) = 2x + 1, what is h(g(f(2)))h(g(f(2)))?
  3. Solve f(f(2))f(f(2)) for f(x)=4x+3f(x) = 4x + 3.
  4. What is g(g(f(1)))g(g(f(1))) given the same functions?
  5. Find g(f(x))g(f(x)) in terms of xx.

Tip: Always start by simplifying the inner function before applying the outer function.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Algebra
Function Composition

Formulas

f(x) = 4x + 3
g(x) = x - 7

Theorems

Function Composition

Suitable Grade Level

Grades 8-10