Algebra 1 Question

Question

A relation R exists such that for every input(x), the output is -x. Which statement about the relation R is correct?

A. The relation R is not a function because there is at least one output for each input.

B. The relation R is not a function because there is more than one input for each input.

C. The relation R is a function because the output is the opposite of the input.

D. The relation R is a function because for each output there is exactly one output.

Answer 1

y= f(x)= -x

it's a function

because for every input there's exactly one output

A and B are flat out dead wrong

D looks like a possible typo, but as written it's not correct

go with C