Question

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

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

Solutions

Expert Solution
"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

answered by: zukyah


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