Question

y=x^2-3x+c and y=k-x-x^2 meet at
(-2,12)
what are the values of c and k??

omg ive tried 100 ways but cant find the correct ans...please help??

Thank You

Answer 1

"Way" number 101 is easier:

From the first equation and the fact that (-2,12) is a solution,
12 = 4 + 6 +c
So c = 2

Similarly, from the second equation, with (-2,12) being a solution of that also,
12 = k +2 -4
k = 14