Mastery WS Ch 9: Coordinates and Linear Graph

Points to take note:

• Mark point with a "X" and label the letter beside the "X"  
• For Q1, 2 and 3, You need to connect the points using a ruler.
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• Equation and gradient of special line that you need to know:
• Vertical line
• Gradient is undefined
• Equation: x = a, [the vertical line cut the x-axis at point (a, 0)] 
• Horizontal line
• Gradient = zero
• Equation: y = b, [the vertical line cut the y-axis at point (0, b)] 

 

The value of x = 5 instead of 4.5 when y = -6