The straight line I

unit 1 topic straigt line
A photo of my handwritten summary of the unit 1 topic on the straight line. Taken from Heinemann Higher Maths

By the end of this topic you should be able to answer the following questions

  • Can you calculate the gradient of the line connecting two points eg (4,2) and (-5,7)?
  • Positive lines slope in which direction?
  • Negative lines slope in which direction?
  • What is the gradient of a line parallel to the x-axis?
  • What is the gradient of a line parallel to the y-axis?
  • What can you say about the gradients of lines which are parallel to each other?
  • How are the gradient of a line and the angle it makes in the positive direction of the x-axis related?
  • How are the gradients of perpendicular lines related?

The knowledge and methods used in this topic occur in later topics so please make the effort to master them.

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