Title: Using the Definition of the Derivative PostVideo Questions
Course: Calculus Videos Project Modules

Q: [Image] is equal to which of the following values?
- 0 (Incorrect)
- 1/5 (Incorrect)
- [Image: 2 square root of 5] (Incorrect)
- 1 (Incorrect)
- [Image: fraction numerator 1 over denominator 2 square root of 5 end fraction] (Correct)
A: [Image: fraction numerator 1 over denominator 2 square root of 5 end fraction]

Q: Which of the following expressions represents the instantaneous rate of change of [Image: square root of 5 x plus 2 end root] with respect to x when x=1?
- [Image: limit as increment x rightwards arrow 0 of fraction numerator square root of 5 open parentheses 1 plus increment x close] (Correct)
- [Image: limit as increment x rightwards arrow 1 of square root of 5 open parentheses 1 plus increment x close parentheses plus 2] (Incorrect)
- [Image: limit as increment x rightwards arrow 0 of fraction numerator square root of 5 open parentheses 1 plus increment x close] (Incorrect)
- [Image: limit as increment x rightwards arrow 1 of fraction numerator square root of 5 open parentheses 1 plus increment x close] (Incorrect)
- [Image: limit as increment x rightwards arrow 0 of square root of 5 x plus 2 end root] (Incorrect)
A: [Image: limit as increment x rightwards arrow 0 of fraction numerator square root of 5 open parentheses 1 plus increment x close]