Sketch a graph of a vertical line. Use the definition of slope (m=\frac{y_2-y1}{x_2-x_1}) to explain how the slope of the line is classified. Sketch a graph of a horizontal line. Use the definition of slope (m=\frac{y_2-y1}{x_2-x_1}) to explain how the slope of the line is classified.

the graph top, left is y = 4x

alright well the answers to your question is

2xy/9 hope this have a nice day : )

step-by-step explanation:

step-by-step explanation:

for exempl this   system of equations   y = x - 3

                                                                y = 2x - 5

look   the line : y = x -3     ( red)

                            the line : y = 2x -5 ( bleus)