GRAPHING LINEAR EQUATION IN TWO VARIABLES WORKSHEET

(1)  Draw the graph of the following

(i)  y  =  2x

(ii)  y  =  4x - 1

(iii)  y = (3x/2) + 3

(iv)  3x + 2y  =  14            Solution

(2)  Solve graphically

(i)  x + y = 7; x − y = 3

(ii)  3x + 2y  =  4, 9x + 6y - 12  =  0

(iii)    (x/2) + (y/4)   =  1 ; (x/2) + (y/4)  =  2

(iv)  x - y  =  0, y + 3  =  0

(v)    y = 2x + 1 ; y + 3x - 6  =  0

(vi)  x  =  -3 and  y  =  3           Solution

(3)  Two cars are 100 miles apart. If they drive towards each other they will meet in 1 hour. If they drive in the same direction they will meet in 2 hours. Find their speed by using graphical method.                Solution

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