Pre-Calculus - Subtraction of two functions f(x) = 2x -5 , g(x) = 2-x

The video tutorial explains how to subtract two functions, emphasizing the importance of using parentheses to ensure the entire function is subtracted. It covers distributing the negative sign and combining like terms to arrive at the final result. The process is broken down into clear steps, making it easy to follow and understand.

What does the operation F - G of X represent in terms of function values?

• Subtracting the value of G from F

• Multiplying the values of F and G

• Dividing the value of F by G

• Adding the values of F and G

Why is it important to use parentheses when subtracting functions?

• To make the expression look neat

• To ensure the entire function is subtracted correctly

• To ensure only the first term is subtracted

• To avoid subtracting the entire function

What is the result of distributing the negative sign in the expression?

• The signs of the terms are reversed

• The terms are added

• The terms remain unchanged

• The terms are multiplied

After combining like terms, what is the simplified expression for the given functions?

• 2X - 1

• 2X - 7

• 3X - 1

• 3X - 7

What is the final result when subtracting the two functions in the example?

• 3X - 5

• 2X - 5

• 3X - 1

• X - 7