Algebra
53. Determine if y=x^2 is a function.
i think the answer is yes, but can someone explain to me why it's yes, and how you find out if it's a function or not.
I know that for every value of x there should be one value of y, but how do you figure that out in a problem like this?
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Answers
Yes, y = x^2 is a function. A function is defined as a relation between a set of inputs (x in this case) and a set of outputs (y in this case) such that each input is associated with one and only one output. In this case, each value of x corresponds with only one value of y, making this a function. You can test this by plugging in different values of input x to see if each one has a unique output y.
