find the distance between the points (5,4)and(14,-2)

Hi. You could also use the distance formula to find the distance between two points. For two points (x1, y1) and (x2, y2) the distance between them is found with the following formula:

Distance = Square Root [ (x2 - x1)² + (y2-y1)²] (i.e., the square root of the whole thing in brackets)

So in your problem, you would take Square Root [ (5 - 14)² + (4 - (-2))²]

= SR [ (-9)² + (6)²] = SR [81 + 36] = SR [117] ~ 10.82