Reflect the point (0, -2) across the line y= 6

Is this a polynomial function? i need to know asap

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?