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CBSE Class 9 Answered

Find the value of k if x=2 and y=1 is a solution of the equation  (k-2)x+y=10 and have plot the graph of the equation.  Write the coordinate of the points where it is cutting x and y axis
Asked by Nandanitak514 | 21 Jun, 2018, 04:39: PM
answered-by-expert Expert Answer
begin mathsize 16px style left parenthesis straight k minus 2 right parenthesis straight x plus straight y equals 10 straight x equals 2 comma space straight y equals 1 2 straight k minus 4 plus 1 equals 10 2 straight k equals 13 straight k equals 13 over 2 so open parentheses 13 over 2 minus 2 close parentheses straight x plus straight y equals 10 at space straight x space axis space straight y equals 0 open parentheses 13 over 2 minus 2 close parentheses straight x equals 10 open parentheses fraction numerator 13 minus 4 over denominator 2 end fraction close parentheses straight x equals 10 straight x equals 10 cross times 2 over 9 equals 20 over 9 point open parentheses 20 over 9 comma 0 close parentheses end style
Answered by Arun | 22 Jun, 2018, 10:07: AM

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