i need help on algebra

Question

what is the slope from this table

x l y

-2 l -1

0 l 2

1 l 3.5

4 l 8

Answer 1

You can use any two points to calculate the slope. Let's say we choose the first point (-2, -1) and the second point (0 , 2) therefore, the slope of the line connecting them is

m = (2 - (-1)) / (0 - (-2)) = 3/2 = 1.5