One-half the product of x and y is what as and algebraic answer

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?

Two sides of a right triangle measure 2 units and 4 units. what is the area of the square that shares a side with the third side of the triangle?