Straight Lines

    Cards (11)

    • straight line equation
      y=mx+c
    • how to find the gradient
      m= y2-y1/x2-x1
    • gradient is negative if it slopes downwards from left to right
    • gradient is positive if it slopes upwards from left to right
    • the x intercept is where the straight line crosses the x axis
    • the y intercept is where the straight line crosses the y axis
    • Distance Formula
      D=square root of (x1-x2)^2 + (y2-y1)^2
    • Midpoint Formula
      M=(x1+x2/2, y1+y2/2)
    • m1xm2=?
      -1
    • parallel if
      same gradient}
    • m= tan0
    See similar decks