Any advice on geometry

The scatter plot graph shows the average annual income for a certain profession based on the number of years of experience which of the following is most likely to be the equation of the trend line for this set of data? a. i=5350e +37100 b. i=5350e-37100 c. i=5350e d. e=5350e+37100

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?

3.4a=57.8 what is the the value of a