Can you please help me with this problem??

Ab and bc form a right angle at point b. if a= (-3,-1) and b= (4,4) what is the equation of bc?

10 points? me . its important ‼️‼️

If you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no. explain your mathematical thinking