Which of the following pairs of linear equations are consistent/inconsistenti
consistent, obtain the solution graphically:
1.x+y=5, 2x+2y=10
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Answered by
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Step-by-step explanation:
ANSWER
(i) x+y=5 ...(i)
2x+2y=10 ...(ii)
⇒x+y=5
⇒y=5−x
x 0 3
y 5 2
Plot (0,5) and (3,5) on graph and join them to get equation x+y=5.
2x+2y=10
⇒2y=(10−2x)
⇒y=
2
10−2x
=5−x ...(iii)
x 5 2
y 0 3
So, the equation is consistent and has infinitely many solution
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