Do oz so oz. Top oz so off.
Slope is change in y over change in c.
Using the two dots shown:
(5,8) (3,2)
Slope = (2-8)/(3-5) = -6/-2 = 3
The slope is 3
To simplify 4/(2+7i), we multiply it by a fraction equal to one that removes the i value in the denominator. The best value to do this is the complex conjugate divided by itself, so we have 4(2-7i)/((2+7i)(2-7i)). Simplifying, we have (8-28i)/(4-(-49))=(8-28i)/53, which is a completely simplified fraction since 8 and 53 are relatively prime (or coprime), and there are no radicals in the denominator.
Rational because you get a whole number
447/250
is the answer to the question
