Question

Let f(x,y) = 2x^2y - 3. Find
a. f(2,3)
b. f(-1,4)
c. f(3,-2)

Answer 1

f(x,y) = 2x^2y - 3.
to get f(2,3) simply substitute x=2,y=3

so you would have
f(2,3) = 2.2^2.3 - 3. = something
the rest are the same idea