Function Evaluation and Operations

The video tutorial covers operational functions, including addition, subtraction, multiplication, and division of functions. The teacher provides examples for each operation, demonstrating how to evaluate and simplify expressions by substituting values into given functions. The tutorial concludes with a division example that results in an undefined value due to division by zero.

What is the notation for addition in operational functions?

• f(x) - g(x)

• f(x) + g(x)

• f(x) * g(x)

• f(x) / g(x)

Which of the following represents the subtraction of two functions?

• f(x) / g(x)

• f(x) * g(x)

• f(x) + g(x)

• f(x) - g(x)

How is multiplication of functions denoted?

• f(x) / g(x)

• f(x) * g(x)

• f(x) - g(x)

• f(x) + g(x)

What is the division notation for functions?

• f(x) + g(x)

• f(x) - g(x)

• f(x) / g(x)

• f(x) * g(x)

In the addition example, what is the value of f(2)?

• 5

• 7

• 1

• 4

What is the value of g(2) in the addition example?

• 15

• 10

• 12

• 14

What is the final result of f(2) + g(2)?

• 10

• 15

• 25

• 20

What is the first step in evaluating f(2) + g(2)?

• Add the functions directly

• Substitute the value into the functions

• Divide the functions

• Multiply the functions

What is the result of 2 squared in the addition example?

• 5

• 4

• 3

• 2

In the addition example, what operation is performed after substituting values?

• Addition

• Subtraction

• Multiplication

• Division