eritchloeCcacano eritchloeCcacano

21-04-2016
Mathematics

contestada

what is the slope of the line that contains the points (-2,4) and (-3,-8)
a. -1/12
b. 1/12
c. -12
d. 12

Respuesta :

Panoyin Panoyin

22-04-2016

[tex]m = \frac{y_{2}}{y_{1}}{x_{2} - x_{1}} = \frac{-8 - 4}{-3 - (-2)} = \frac{-12}{-3 + 2} = \frac{-12}{-1} = 12[/tex]

y - y₁ = m(x - x₁)
y - 4 = 12(x - (-2))
y - 4 = 12(x + 2)
y - 4 = 12(x) + 12(2)
y - 4 = 12x + 24
+ 4 + 4
y = 12x + 28

The answer is D.

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