qwerty32121 qwerty32121

18-11-2020
Mathematics

contestada

Find the slope of the given points (3, 4) and (7,-4).
A)-1/2
B) 2
C) -2
D) 0

Respuesta :

nadja17 nadja17

18-11-2020

Answer:

-2

Step-by-step explanation:

[tex]y = kx + n[/tex]

When you insert the given points you get

[tex]3k + n = 4 \\ [/tex]

[tex]7k + n = - 4 \\ [/tex]

Than you multiply the first one by - 1 and sum it with the second to get rid of n

[tex]4k = - 8 \\ k = - 2[/tex]

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