Answer: C (2,-3)
Explanation: (x1+x2/2),(y1+y2/2)
Well I just need to know a circle has a radius of 50 cm
A / b = c
a is dividend
b is divisor
c is quotient
c = b then
a / b = b
a = b^2 or
divisor squared
divisor ^ 2
Near the point (6, 6, 3), we have the approximation

where the subscripted

's refer to the corresponding partial derivatives.


So

Compare to more precise value,