The points (2,5), (3, 3) and (k, 1) all lie in a straight line. (a) Find the value of k.
(b) find the equation of the line

(a) k = 4 (b) y = -2x+9

Step-by-step explanation:

I know I solved it in reverse, but I hope you still be able to understand the way I solved.

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step-by-step explanation:

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation: