point slope form of a line
y-y1 = m(x-x1)
y-4 = -3(x--5)
y-4 =-3(x+5)
to change to slope intercept form
dstribute
y-4 = -3x-15
add 4 to each side
y = -3x-15+4
y = -3x-11
Answer:
(x,y) becomes (-y,x) so (3,2) would become (-2,3)
5.09 because 2 is less then 5 so you round down
