Answer:slope = 2
Step-by-step explanation:The slope of the line can be calculated using the following rule:
slope =
![(y2 - y1)/(x2 - x1)](https://img.qammunity.org/2019/formulas/mathematics/high-school/7tm65cgb5qjgom2sdnxyvrv7rdnlxjikul.png)
In the given, we have:
point (-1 , 4) representing (x1 , y1)
point (3 , 12) representing (x2 , y2)
Substitute with the givens in the above formula to get the slope as follows:
slope =
![(12 - 4)/(3 - -1) = 2](https://img.qammunity.org/2019/formulas/mathematics/middle-school/atro4yedbvmozc2ss75nb9w5vimtb3s7k4.png)
Hope this helps :)