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Pero m = 5
m = (Y2 - Y1)/(X2 - X1)
A: (3 , 5); B: (7 , y)
X1 = 3; Y1 = 5; X2 = 7; Y2 = y
m = (y - 5)/(7 - 3)
m = (y - 5)/(4)
5 = (y - 5)/(4)
(5)(4) = (y - 5)
20 = y - 5
y = 20 + 5
y = 25
El valor de y = 25, osea que punto B: (7 , 25)
Hallemos la ecuacion de la recta: A: (3 , 5); B : (7 , 25)
X1 = 3; Y1 = 5; X2 = 7; Y2 = 25
Y - Y1 = m(X - X1)
Donde m = (Y2 - Y1)/(X2 - X1) = (25 - 5)/(7 - 3) = 20/4 = 5
Y - 5 = 5(X - 3)
Y - 5 = 5X - 15
Y = 5X - 15 + 5
Y = 5X - 10 (Ecuacion de la recta)
Rta: y = 25