Find the slope and y-intercept of (5,3) and (4,5)

Can someone pls ! pls answer all. no explanation needed..

The width of a rectangle is 20 units. can the perimeter p of the rectangle be 64 units when its length x is 11 units? no, because p = 2x + 2(20) no, because p ≠ 2x + 2(20) yes, because p ≠ 2x + 2(20) yes, because p = 2x + 2(20)

The circle below is centered at the point (3, 1) and has a radius of length 2. what is the equation?