Answer:
a. 0
Explanation:
1. To find the slope given two points, use the following formula:
![(y^(2)- y^(1) )/(x^(2)-x^(1) )](https://img.qammunity.org/2021/formulas/mathematics/middle-school/t96bcyju2p7t3ew0hmn5f3olhp5bk030d1.png)
2.
would be the second y-value (in the second ordered pair), 2, and
would be the first y-value (in the first ordered pair), also 2.
3. Same for the x-values.
is -2 and
is 4
4. Now plug in the values.
![(2-2)/((-2)-4)](https://img.qammunity.org/2021/formulas/mathematics/middle-school/apdf6sr3ok0xnf4hjjptamd4qnaiqz0rfd.png)
5. This equals
which simplifies to 0