Question

Which of the following relations are function

l. y= -x +2
ll. x=-y+2
lll. x-y=2
all of them
choice 1 only
Choice 2 only
Choice 3 only

Answer 1

Answer: The correct answer is choice 1 only (y=-x+2)

Explanation: Functions are in the form of y as a function of x. This can also be represented as "f(x)=-x+2", since f(x) is the functional equivalent of y.