A point (2,n) is 5 units away from the point (-1,1). What is the product of all possible integer values for n?
Use distance formula
(2- -1)^2 + (n-1)^2 = 5^2
9 + n^2 -2n+1 = 25
n^2 -2n -15 = 0
(n-5)(n+3) = 0 n = 5 or -3
Thank you!
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