The school auditorium has 34
rows of seats. The first row has
12 seats, the second row has 14
seats, and the third row has 16
seats. If this pattern continues,
how many chairs will be
in the last row?

Step-by-step explanation:

Total no of rows = 34

No of seats in first row = 12

No of seats in second row = 14

Third row = 16

If we continue this pattern of even numbers the last row will have 78 seats

step-by-step explanation:

i dont get

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.