12. if y = 12 when x = 18, find x
when y = -16.

-10

Step-by-step explanation:

y = 12 , x = 18

seems like there's 6 difference

so if y = -16 then x must be = -10

answer: it is 1: 47 pm

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square