What is the point of intersection when the system of equations below is graphed on the coordinate plane?
x-y=1 and y-x=1

Which polygon is she in the process of constructing ?

If the square of a positive integer is added to 2 times the integer the result is 48. find the integer.

Which account has the highest effective annual interest rate? not necessary but show how you got your answer. a. account 1: interest is compounded quarterly at an annual rate of 4.20%.b. account 2: interest is compounded monthly at an annual rate of 4.15%.c. account 3: interest is compounded semiannually at an annual rate of 4.10%d. account 4: interest is compounded annually at a rate of 4.25%.