The equation of this graph is y = f(x)
X
a) Write down the
y =
equation of this graph.
On the grid, graph A has been reflected
to give graph B.
The equation of graph Ais y = g(x)
graph A
graph B
-3
b) Write down the equation of graph B.
y=
(1)

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis