Respuesta :
Answer:
2y = 10, {(2, 3), (1, 3), (5, 3), (2, 6)}
-3x = 15, 3x − 0.25y = 3
Step-by-step explanation:
When we see the given relations we can easily see that 3x-0.25y=3 is the only function and the rest two -3x=15, 2y=10 are not functions.
What is a function?
In a function ,element of x has a corresponding value of y.
How to determine a function?
we have been given three relations as under:
-3x=15
2y=10
3x-0.25y=3
In the first we can only calculate the value of x=-5 but we cannot calculate the value of y.
In he second also we are given only one variable through which we can only determine the value of y.
In the third if we put the value of x then we can determine the value of y easily means each value of x has a corresponding value of y.
Hence 3x-0.25y=3 is the only function among the three.
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