Step-by-step explanation:
Example finding the slope of the line : ⇒ (1,8) and (2,4)
Slope formula:
[tex]\displaystyle \frac{y_2-y_1}{x_2-x_1}[/tex]
[tex]\displaystyle y_2=4\\\displaystyle y_1=8\\\displaystyle x_2= 2\\\displaystyle x_1= 1\\[/tex]
[tex]\displaystyle \frac{4-8}{2-1}=\frac{-4}{1}=-4[/tex]
Therefore, the slope is -4, -4 is the correct answer.
