Question

${x}^{2} + {y }^{2} = 36 \:$
x € [–6,6]

Is it a function or not​ ?? if yes why

Answer 1

Answer:

Step-by-step explanation:

NO, it is NOT a function because x= 0 gives both y = - 2 and y = 2.

x^2 + y^2 = 36 defines however a function on [0 , 6].