7.1-7.4 · Straight-line graphsLesson 1 of 13Free preview
Length of a line
The length from (x1, y1) to (x2, y2) comes from Pythagoras: square the two differences, add them, then take the square root.
7.1-7.4 · Straight-line graphsLesson 1 of 13Free preview
The length from (x1, y1) to (x2, y2) comes from Pythagoras: square the two differences, add them, then take the square root.