Write the standard form of the equation of the line through the given point with the given slope. through: (3,5) slope=5/3

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)

Math it's appreciated. (picture provided)