Exercise 32 Page 154

The Slope Formula is used to determine the slope m of the line that connects two given points, ( x_1, y_1) and ( x_2, y_2). m=y_2- y_1/x_2- x_1Here, we are given the slope of a line and two points, one of them with a missing coordinate. When we substitute these values into the Slope Formula, it does not matter which point we choose to use as ( x_1, y_1) or ( x_2, y_2). Both will give the same result. 2 =k- 3/5- 1 or 2=3- k/1- 5 We will use the points in the given order and solve for the unknown coordinate.