Edwin is deriving the equation of a line that passes through the origin. He has made the drawing below. Find the slope of the line two different ways:

using the points A and B , and
using the points A and C .
Explain why the two expressions you find must be equal. Use this to derive an equation for the line Edwin graphed. Show your work.

Quartile are numbers used to divide a set of data into four equal parts or quarter

The answer is 63.!

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.