Find the values of x and y quadrilateral and please explain, thank you

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

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?