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What is the slope of the line passing through the points (−2, −8) and (−3, −9) ? a. -1 b. -5/7 c. 1 d. -7/5
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What is the slope of the line passing through the points (−2, −8) and (−3, −9) ?

a. -1
b. -5/7
c. 1
d. -7/5

User Paddington
by
5.8k points

2 Answers

4 votes

\bf \begin{array}{lllll} &x_1&y_1&x_2&y_2\\ % (a,b) &({{ -2}}\quad ,&{{ -8}})\quad % (c,d) &({{ -3}}\quad ,&{{ -9}}) \end{array} \\\\\\ % slope = m slope = {{ m}}= \cfrac{rise}{run} \implies \cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{-9-(-8)}{-3-(-2)}\implies \cfrac{-9+8}{-3+2}
User Opsocket
by
6.0k points
6 votes
The answer is C, 1.

y₂ - y₁ -9 + 8 -1
---------- = ----------- = ------ = 1
x₂ - x₁ -3 + 2 -1
User Arjen De Jong
by
6.4k points
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