SECTION 8-11 8-2. Functions of Several Variables and Partial Derivatives 1. Find (-10,4,-3) for fr.v.2) 2-3y² +5²-1. 2. Find (z.g) for f(r.g) 3²+2ry-7y². 3. Find for(2-3) 4. Find C(r.) for C(r.) 3+1ry-8+4r-15y-120.