Plz help its number 20

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

Find the domain of the following expression: 1/(√x)-2

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]