Find the slope of the line through each pair of points 1. (-9,-20)(6,-15)

2. (13,-2)(6,15)

3. (8,6)(-2,-6)

4. (-19,19)(17,7)

Quick i will mark brainliest i need anwser by tommorow before 9am or a fail

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.]