For each relation, decide whether or not it is a function. I’m really lost on this, thanks a ton if you can answer this.

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Which of the following is the graph of y= square root -x-3

40 points. given: two congruent angles ∠c and ∠r are supplementary. prove: ∠r and ∠c are both right angles. it doesn't have to be exactly 10 rows.statements reasons1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. 6. 7. 7. 8. 8. 9. 9. 10. 10.