Respuesta :

C1042

Answer:

y = 2/5x + 11/5

Step-by-step explanation:

midpoint:

[tex] (\frac{x1 + x2}{2}, \frac{y1 + y2}{2} )[/tex]

P(-4 , 8)

Q(0 , -2)

[(-4+0)/2 , (8-2)/2]

=(-4/2 , 6/2)

=(-2 , 3)

gradient:

[tex]m = \frac{y1 - y2}{x1 - x2} [/tex]

m = (8+2)/(-4-0)

= 10/(-4)

= -5/2

= 2/5 (opp. of reciprocal)

equation:

y = mx + c

y = 2/5x + c

3 = 2/5(-2) + c (using coordinate of midpoint)

c = 3 + (-4/5)

= 11/5

y = 2/5x + 11/5

(Correct me if i am wrong)

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