Mistakes students make with operations of functions #brianmclogan

The video tutorial explains various operations on functions, including multiplication, addition, division, and composition. It addresses common student confusions, especially with function notation and operations involving fractions. The tutorial provides step-by-step explanations and examples to clarify these concepts, emphasizing the importance of understanding the correct methods for each operation. The video concludes with a detailed explanation of function composition, highlighting common mistakes and the correct approach to simplify such expressions.

What is the result of multiplying H(x) = 1/x by itself?

• x^2

• x

• 1/x

• 1/x^2

When adding two fractions with the same denominator, what should you do?

• Add both numerators and denominators

• Multiply both numerators and denominators

• Add the numerators and keep the denominator the same

• Multiply the numerators and keep the denominator the same

What is the result of dividing H(x) = 1/x by itself?

• 1

• x

• x^2

• 0

In the composition of functions, what does H(H(x)) mean?

• H(x) plugged into H(x)

• H(x) added to H(x)

• H(x) divided by H(x)

• H(x) multiplied by H(x)

How do you simplify 1/(1/x)?

• x^2

• x

• 1

• 1/x