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Geometry Coordinate – Equation of Lines

Question

Solve the following equation of lines questions.

  1. If the y-intercept is 9 while the gradient is 10, state the equation of the line.
  2. A straight line pass through the origin. If the gradient is 2, 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.

 

Answer

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

Note:

  • y = mx + c
  • Where, m refers to the gradient, while c is the y-intercept.

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