Is this relation is a function!!!!!!!10 points.?

Question

Hi,

Is the relation x=y^2 a function? use a table of values to justify your answer.

state the domain and range of y=x^2+1.justify your answer.

thank u so much

Answer 1

No it is not a function. Because y can equal more than one value for a given x. For example, if you plug in a 2 or negative 2 you would get a 4. A table of values is 0-0, 1-1, 2-4, -1,1.

Domain of that function is all real numbers because x can be either negative or positive, there are no restrictions. Its range is x is greater than or equal to one because the smallest outcome is 1. Good luck!