The straight line passing through the point P(2,1) and the point Q(k,11) has gradient

(a) Find the equation of the line in terms of x and y only.

(b) Determine the value of k

Not sure how to go about doing this question.

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- Feb 13th 2009, 01:03 PMTweetyequation of a straight line.
The straight line passing through the point P(2,1) and the point Q(k,11) has gradient

(a) Find the equation of the line in terms of x and y only.

(b) Determine the value of k

Not sure how to go about doing this question. - Feb 13th 2009, 01:29 PMmasters