Question

A line on a grid passes through the points (2.7, 3.5) and (1.6, 2.4). What is the vertical change between these two points?

Answer 1

This is math.

Answer 2

Not history.

Answer 3

a point (x, y) has horizontal component x and vertical component y

if two points are (x_1, y_1) and (x_2, y_2)
the change in horizontal component is x_2-x_1
and the change in vertical component is y_2-y_1

Answer 4

got it ?