1. Let f(x, y) = x4y2 + x3y + x + y a.) Find all the first and second order partial derivatives of f(x, y). (10 points) b.) Evaluate fx(1, 1) and interpret the meaning of this value. (2 points) c.) Evaluate fy(1, 1) and interpret the meaning of this value. (2 points 2. Let f(x, y, z) = 2 1.5x + 2.7y + 3.3z. Complete the following sentences to interpret the meaning of the coefficients in front of x, y, and z. (2 points each) a.) The outputs of f ...............by .............units for every 1 unit increase in x. b.) The outputs of f .................by ..............units for every 1 unit increase in y. c.) The outputs of .................f by 3.3 units for every .............. Please make the notes organized and explain it like test answers because I don't want to have over explanation answers it makes me confused. Please make it organized and so easy to read