1. 3x + cy =5 -----> y = (-3/c)x + (5/c) , jadi m1 = (-3/c)
2. y-3x=11 -------> y = 3x + 11 , jadi m2 = 3
syarat 2 garis tegak lurus:
m1.m2= -1
sehingga:
(-3/c).3= -1
-9/c = -1
-c = -9 -----> c = 9
smoga bsa mmbantu... :) dan maaf klo slah.
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1. 3x + cy =5 -----> y = (-3/c)x + (5/c) , jadi m1 = (-3/c)
2. y-3x=11 -------> y = 3x + 11 , jadi m2 = 3
syarat 2 garis tegak lurus:
m1.m2= -1
sehingga:
(-3/c).3= -1
-9/c = -1
-c = -9 -----> c = 9
smoga bsa mmbantu... :) dan maaf klo slah.