Question

What is the slope of the line through (-9,6) and (-3,9) A: 2B: -2C: 1/2D: - 1/2

Answer 1

`\begin{gathered} \text{slope = }(\Delta y)/(\Delta x)=(y_2-y_1)/(x_2-x_1) \\ =(9-6)/(-3-(-9)) \\ =(3)/(-3+9) \\ =(3)/(6) \\ =(1)/(2) \\ \text{slope = 1/2} \end{gathered}`