Answer:
a. 0
Step-by-step explanation:
1. To find the slope given two points, use the following formula:
[tex]\frac{y^{2}- y^{1} }{x^{2}-x^{1} }[/tex]
2. [tex]y^{2}[/tex] would be the second y-value (in the second ordered pair), 2, and [tex]y^{1}[/tex] would be the first y-value (in the first ordered pair), also 2.
3. Same for the x-values. [tex]x^{2}[/tex] is -2 and [tex]x^{1}[/tex] is 4
4. Now plug in the values.
[tex]\frac{2-2}{(-2)-4}[/tex]
5. This equals [tex]\frac{0}{-6}[/tex] which simplifies to 0
