# Tutor profile: Taylor N.

## Questions

### Subject: Pre-Calculus

What is a derivative function?

It is one that is used to find the slope of a tangent line at a specific value of x on a graph. For example, if a question asked for the height of an object at a specific time, one would use a derived function from the original to find said height at that time.

### Subject: Statistics

What are four of the most common sampling methods when obtaining data?

Biased, Unbiased/Random (SRS), Stratified Random, and Multistage Sampling.

### Subject: Algebra

Expanding from what was learned in Algebra 1, what is the quadratic formula and for what purpose is it used?

The Quadratic formula is x equals the quantity of negative b plus or minus the square root of the quantity b squared minus 4ac, all over the quantity of 2a. Or x = (-b ± √(b^2-4ac)) / (2a). It is used to find the simplified version, or the zeros, of the equation y = ax^2 + bx + c.

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