What is the image of (-1,5) after a reflection over the line y = x?

What is the value of x in the equation7x+2y=48 when y=3

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x, y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis

Perform the indicated operation and write the answer in the form a + bi. (-5 + 2) + (3 - 6i)