Question

I'm preparing for the ACT , and forgot how to do this. Can anyone help me?

What is the slope of a line passing through r(2,-6) and S(-4,-3) in the (x,y) coordinate plane?

Answer 1

\(\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
R&({\color{red}{ 2}}\quad ,&{\color{blue}{ -6}})\quad S &({\color{red}{ -4}}\quad ,&{\color{blue}{ -3}})
\end{array}
\\\quad \\

slope = {\color{green}{ m}}= \cfrac{rise}{run} \implies \cfrac{{\color{blue}{ y_2}}-{\color{blue}{ y_1}}}{{\color{red}{ x_2}}-{\color{red}{ x_1}}}\)

Answer 2

\[\frac{(-3) -1 }{ (-4)- 2 } = \frac{ -4 }{ -6} = \frac{ 2 }{ 3 } ?\]

But then 2/3 is not in my answer choices

Answer 3

ooh is my mistake i put -1 instead of -6 for y^1

Answer 4

\[\frac{ -3 - (-6)}{ -4 - 2 } = \frac{ 3 }{ -6 } = - \frac{ 1 }{ 2 }\] *

Answer 5

Thanks for refreshing my mind ! (:

Answer 6

yw