Answer:
The answer is 1
Step-by-step explanation:
The slope of a line given two points can be found by using the formula
[tex]m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\ [/tex]
where
(x1 , y1) and (x2 , y2) are the points
From the question we have
[tex]m = \frac{ - 3 - - 12}{15 - 6} = \frac{ - 3 + 12}{9} = \frac{9}{9} = 1 \\ [/tex]
We have the final answer as
1
Hope this helps you
