Salve by epaphical method
x+y=5, 2x+y=8 with graph
method
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EXPLANATION.
Graph of the equation.
⇒ x + y = 5. - - - - - (1).
⇒ 2x + y = 8. - - - - - (2).
As we know that,
From equation (1), we get.
⇒ x + y = 5. - - - - - (1).
Put the value of x = 0 in equation, we get.
⇒ (0) + y = 5.
⇒ y = 5.
Their Co-ordinates = (0,5).
Put the value of y = 0 in equation, we get.
⇒ x + (0) = 5.
⇒ x = 5.
Their Co-ordinates = (5,0).
From equation (2), we get.
⇒ 2x + y = 8. - - - - - (2).
Put the value of x = 0 in equation, we get.
⇒ 2(0) + y = 8.
⇒ y = 8.
Their Co-ordinates = (0,8).
Put the value of y = 0 in equation, we get.
⇒ 2x + (0) = 8.
⇒ 2x = 8.
⇒ x = 4.
Their Co-ordinates = (4,0).
Both curves intersects at a point = (3,2).
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