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# Equations of Lines – Coordinate Geometry

### Equations of Lines – Coordinate Geometry (Question)

Solve the following questions.

1. If the gradient is 10 while the y-intercept is 9, what is the equation of the line?
2. A straight line which gradient is 2 pass through the origin. What is the equation of the line?
3. Form the equation of the line for two points (1,1) and (2,5) that fall within the line.

Guide:

y = mx + c

Where, m is the gradient, while c refers to the y-intercept.

1. y = 10x + 9
2. y = 2x
3. y = 4x – 3

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