babyanasia babyanasia
  • 04-12-2019
  • Mathematics
contestada

- Find the missing value so that the line passing through the points has the given slope. (x,-4) and (2,8) m=-3​

Respuesta :

rani01654 rani01654
  • 09-12-2019

Answer:

x = 6

Step-by-step explanation:

The formula of slope of a straight line passing through two given points ([tex]x_{1},y_{1}[/tex]), and ([tex]x_{2},y_{2}[/tex]) is given by  

[tex]m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}[/tex].

As, the straight line passes through the points (x,-4) and (2,8) and has slope - 3.

So, we can write [tex]\frac{8 - (- 4)}{2 - x} = - 3[/tex]

⇒ 12 = 3x - 6

⇒ 3x = 18

⇒ x = 6 (Answer)

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