Reading a Graph with Straight Lines

Which of these lines is
y = 5?

• The orange one

• The red one

• The blue one

• The green one

The point A on the line
y = 3x - 7
has an x co-ordinate of 4.
What is the y co-ordinate of A?

• -4

• 5

• 0

• 4

Find the y-coordinate of the midpoint of the line

• 1

• 2

• -2

• 3

What rule connects the x and y values from this table?

• y = 2x + 5

• y = 4x + 1

• y = 3x + 3

• y = x + 7

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• 
• 
• 

Which is the graph of y=-x+2?

• A

• B

• C

• D

What is the equation of the straight line shown in the diagram?

• y = -2.5x - 5

• y = 2.5x - 5

• y = -3x - 5

• y = 3x - 5

What is the equation of this line?
_{(in the form y = mx + c)}

• y = -3x + 2

• y = 2x - 3

• y = 2x + 3

• y = -2x - 3

Graph

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• 
• 
• 

Which of these
co-ordinates lie on the line
y = 3x - 8?

• (5, 8)

• (0, 8)

• (2, -2)

• (1, 5)