1. Determine if is increasing or decreasing at if
(a) we allow x to vary and hold y
fixed.
(b) we allow y to vary and hold x
fixed.
2. Determine if is increasing or decreasing at if
(a) we allow x to vary and hold y
fixed.
(b) we allow y to vary and hold x
fixed.
3. Determine if is increasing or decreasing at if
(a) we allow x to vary and hold y
fixed.
(b) we allow y to vary and hold x
fixed.
4. Write down the vector equations of the tangent lines to
the traces for at .
5. Write down the vector equations of the tangent lines to
the traces for at .