Answer:
It is not a function.
Step-by-step explanation:
This is what we call a mapping;
Functions do not give multiple output values for a given input value;
As we can see, the input 2 produces an output of 20 and 40, therefore we can tell this is not a function.
S=N*35.
N is equivalent to S times 35
Answer:
Step-by-step explanation:
(-2,-2) , (5,-5)

(-2,-2), m= -3/7
Line equation: y -y1 =m*(x -x1)
y-(-2) = -(-3/7)(x - [-2])
