What is the slope of the line passing through the following points: $(- 2, - 1), (- 1, 1)$ $(-2, -1), (-1,1)$ ?

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What is the slope of the line passing through the following points: $(- 2, - 1), (- 1, 1)$ $(-2, -1), (-1,1)$ ?

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Answer 1 · 2018-04-08T00:01:41

The slope is $2$ $2$ .

Here's how I did it:

Explanation:

To find the slope of a line from two points, we use the formula $\frac{change in y}{change in x}$ $("change in y")/("change in x")$ or $\frac{y_{2} - y_{1}}{x_{2} - x_{1}}$ $(y_2-y_1)/(x_2-x_1)$ .

So let's plug in those two points we have (pay attention to the negative signs!):
$\frac{1 - (- 1)}{- 1 - (- 2)}$ $(1-(-1))/(-1-(-2))$

And now let's simplify:
$\frac{2}{- 1 + 2}$ $2/(-1+2)$

$\frac{2}{1}$ $2/1$

$2$ $2$

The slope is $2$ $2$ .

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What is the slope of the line passing through the following points: $(- 2, - 1), (- 1, 1)$ $(-2, -1), (-1,1)$ ?

1 Answer

Explanation:

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What is the slope of the line passing through the following points: (-2, -1), (-1,1) (−2,−1),(−1,1)(-2, -1), (-1,1) ?

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What is the slope of the line passing through the following points: $(- 2, - 1), (- 1, 1)$ $(-2, -1), (-1,1)$ ?