The relation is a function because it is a one-to-one relation
How to determine if the relation is a function?
The relation is given as
y = -3x
The inputs are given as
x = 0, x = 1 and x = 2
Substitute the values of x i.e. x = 0, x = 1 and x = 2 in the equation of the function y = -3x
So, we have
y = -3(0) = 0
y = -3(1) = -3
y = -3(2) = -6
From the above computations, we can see that the y values are different for the inputs
Hence, the relation is a function because it is a one-to-one relation
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