find the value of r so the line that passes through each pair of points has the given shape (3, 5), (- 3, r), m = 3/4

Ya i could just need to know what type of math

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.

now i kniw my abcs next time wont u sing with me