Find the equation of a line with a slope of 3 and passing through (1/3 ,27/3)

The line containing the midpoints of the legs of right triangle abc where a(-5,5), b(1, 1), and c(3, 4) are the vertices.

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)

The lengths of two sides of a right triangle are given. find the length of the third side. round to the nearest tenth if necessary. a) y = 12/5x + 39/5 b) y = 5/12x + 5/39 c) y = 12/5x - 39/5 d) y = 5/12x - 5/39