" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
2x + y = 9
2x +3y= 19
------------------ - (metode eliminasi)
-2y = -10
y = 5
subtitusikan...
2x + y = 9
2x + 5 = 9
2x = 4
x = 2
jadi titik potongnya (2,5)
pers.garia melalui ttik (-3,1)
x1 = -3 ; y1 = 1
x2 = 2 ; y2 = 5
y-y1 / y2-y1 = x-x1 / x2-x1
y-1 / 5-1 = x-(-3) / 2-(-3)
y -1 /4 = x+3 / 5 (perkalian silang)
5(y-1) = 4(x+3)
5y - 5 = 4x+12
-4x +5y -17 = 0
4x - 5y + 17 = 0