Question

Draw the graph of equation 5x-2y =1 and from the graph , determine whether a) x=4, y = 2 and b) x=-1 , y=3 are solutions or not.
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Answer 1

Answer:

(b)5(-1)-2(3)=1

(-5)-6=1

-11≠1

(a)5(4)-2(2)=1

20-4=1

16≠1