1, -4, 9, -16, what is the next number

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list

Zack notices that segment nm and segment pq are congruent in the image below: which step could him determine if δnmo ≅δpqr by sas? (5 points) segment mo ≅ segment qr segment on ≅ segment qp ∠ n ≅ ∠ r ∠ o ≅ ∠ q