Question

How do you find the slope of the line that contains the points, (1, 2) and (2, 5)?

Answer 1

In general the slope of a line between two points is is given by
`"difference in y-coordinates"/"difference between corresponding x-coordinates"`

For two points `(color(red)(1),color(blue)(2))` and `(color(red)(2),color(blue)(5))`
this is
`m= (Delta y)/(Delta x) = (color(blue)(5-2))/(color(red)(2-1)) = 3`