What are the solutions to the system of nonlinear equations? y=x^2+3 , y=x+1

Which expression is equivalent to (9x - 3 1/ + 1 3/8)

What is the equation in point slope form of the line that passes through the point (-1, -3) and has a slope of 4? y-1=4(x-3) or y+3=4(x+1)

The anwser cause i do not understand just plez