Linear Eqtns. in 2 Variables

The graph of y=2x+1 is

• a straight line.

• some points.

• a circle.

• a triangle.

The above table shows some points of the graph of x+3y=6 . Find a .

• 3

• 1

• 0

• - 3

The above table shows some points of the graph of 3x+2y=12 . Find a .

• 7.5

• 5

• 4

• 4.5

The above table shows some points of the graph of 2x-y-5=0 . Find a .

• -9

• 9

• -7

• -2

Which of the following can represent the graph of a straight line?

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• 
• 
• 

Which of the following can represent the graph of x+3y=0 ?

• 
• 
• 
• 

• 
• 
• 
• 

• 
• 
• 
• 

• x=1 and y=5

• x=5 and y=1

• x=-1 and y=4

• x=4 and y=-1

• x=2 and y=2

• x=1 and y=1

• x=-2 and y=-2

• x=3 and y=5