Answer:
Option: B is the correct answer.
The function is:
B.
![f(x)=2x+6](https://img.qammunity.org/2020/formulas/mathematics/middle-school/fnin2m5wwb0zytk9zeo51cee8ao0zb64ey.png)
Explanation:
By looking at the graph we observe that the three points follow a linear path.
This means that there will exist a line that passes through these three points .
The line will pass through (1,8) , (2,10) , (3,12)
Hence, the equation of line using two points (1,8) and (2,10) is:
![y-8=(10-8)/(2-1)* (x-1)\\\\i.e.\\\\y-8=(2)/(1)* (x-1)\\\\i.e.\\\\y-8=2(x-1)\\\\i.e.\\\\y-8=2x-2\\\\i.e.\\\\y=2x-2+8\\\\i.e.\\\\y=2x+6](https://img.qammunity.org/2020/formulas/mathematics/middle-school/k6kupgodye7apv681biyfm4oklhwb812g2.png)