Question

plot the graph of 2x − y + 1 = 0. Show using a table, the values of x and y for the equation 2x − y + 1 = 0 on your answer sheet.

Answer 1

Step-by-step explanation:

Plotting 2x−y−1=0 and 2x+y=9 in the graph,we get

the point of intersection is (2.5,4)

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Answer 2

Step-by-step explanation:

Given :

2x -y + 1 = 0

then,

2x = y -1

x = ( y -1) /2..........equation,

Table -

X = -1, 0 , 1/2, 1

Y = -1, 1 , 2 , 3

Hence,

While plotting in graph , -1 , -1 will intersect the line and the co-ordinate will be required number.

So,

x= -1

y = -1 answer