Choose one value that is in the domain of both y(x)=x^2and y^2=x and that is greater than 0. Substitute that value into y(x)=x^2and y^2=x and then simplify. Explain how your answers help to show that the graph on the left represents a function while the graph on the right represents a relation. Show your work and use function notation where possible

Icould really use some with this question.

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Without any equipment, you can see stars that are 2{,}800{,}0002,800,0002, comma, 800, comma, 000 light-years away. by looking through a small telescope, you can see stars that are 3{,}112{,}000{,}0003,112,000,0003, comma, 112, comma, 000, comma, 000 light-years away. approximately how many times as far can you see using a small telescope as without any equipment?