Math Problem Statement

W21D3 Honors Discussion Board.pdf

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pick two functions from the worksheet and add,subtract,divide, multiply, or do a composite, and it should equal one of the solutions that is listed from A to P.

Solution

The worksheet you uploaded contains a set of functions and asks to perform operations like addition, subtraction, multiplication, division, or composition on them to achieve a result that matches one of the solutions listed (from "a" to "p"). Here are the given functions:

  1. g(x)=x4g(x) = \frac{x}{4}
  2. h(x)=x+2h(x) = x + 2
  3. p(x)=3xp(x) = 3x
  4. q(x)=x5q(x) = x - 5
  5. r(x)=7xr(x) = 7x
  6. s(x)=x+5s(x) = x + 5
  7. t(x)=1xt(x) = \frac{1}{x}
  8. v(x)=2xv(x) = 2x

Potential Solution:

Let's start by trying to create a function that matches one of the listed solutions using some of the operations.

  1. Addition:
    Let's try adding g(x)g(x) and h(x)h(x): g(x)+h(x)=x4+(x+2)=x4+x+2g(x) + h(x) = \frac{x}{4} + (x + 2) = \frac{x}{4} + x + 2 Simplifying this expression: g(x)+h(x)=x4+4x4+2=5x4+2g(x) + h(x) = \frac{x}{4} + \frac{4x}{4} + 2 = \frac{5x}{4} + 2 This does not match any of the listed options exactly.

  2. Multiplication:
    Let's try multiplying g(x)g(x) and r(x)r(x): g(x)r(x)=(x4)7x=7x24g(x) \cdot r(x) = \left(\frac{x}{4}\right) \cdot 7x = \frac{7x^2}{4} This closely resembles option "h", which is f(x)=27x4f(x) = \frac{27x}{4}, but it’s not an exact match.

  3. Composition:
    Let’s compose h(x)h(x) and p(x)p(x): h(p(x))=h(3x)=3x+2h(p(x)) = h(3x) = 3x + 2 This matches solution "i": f(x)=7x+2f(x) = 7x + 2.

Would you like more details on these steps or another function operation?

Expanding Knowledge with More Questions:

  1. How does composition of functions differ from multiplication of functions?
  2. How would you graph f(x)=7x+2f(x) = 7x + 2 to visualize the solution?
  3. Can you find a different function operation that results in another listed solution?
  4. What happens when you divide two functions like g(x)g(x) and v(x)v(x)?
  5. How would you solve for xx if given an equation like g(x)+h(x)=7g(x) + h(x) = 7?

Tip: When performing function composition, think of one function acting as the "input" to another, where you substitute one into the other.

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Math Problem Analysis

Mathematical Concepts

Function Operations
Function Composition
Algebra

Formulas

g(x) = x / 4
h(x) = x + 2
p(x) = 3x
q(x) = x - 5
r(x) = 7x
s(x) = x + 5
t(x) = 1/x
v(x) = 2x

Theorems

Function Composition
Basic Operations on Functions

Suitable Grade Level

Grades 9-12