I've tried to get the answer for this 4 times, plzzz help: write a formula that represents the number of people in the nth row (pre-calc problem, I only need the formula)

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

The reflexive property of congruence lets you say that ∠pqr ≅

Amir wants to proportionally increase the size of a photo to create a poster for his room. the size of the original photo is shown. complete the statement and then answer the question to represent ways that amir can increase the size of his photo.