Use inductive reasoning to predict the next line in the pattern. Then perform the arithmetic to determine whether your conjecture is correct. 15 × 16 = 17 × 18 - (15 + 16 + 17 + 18)
16 × 17 = 18 × 19 - (16 + 17 + 18 + 19)

answer: i think it is (1,-2)

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.