Astudent must find the slope of a line that passes through the points (–1, 1) and (2, 3). which of the statements below best applies to the sample mathematical work

Hope this helps. not sure if that's all you need

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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.