" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
y = 3/4x-13/4, gradiennya 3/4
misalkan gradien garis baru adalah m, karena tegak lurus, maka m.3/4 = -1 --> m = -4/3
y-y1 = m(x-x1)
y+3 = -4/3(x-4)
3y+9 = -4x+16
3y = -4x+16-9
3y = -4x+7
x1= 4 y1= -3
4y= 3x-13
y= 3/4
m1= 3/4
karena tegak lurus maka:
m1 × m2= -1
3/4 × m2= -1
m2= -1 : 3/4
m2= -1 × 4/3
m2= -4/3
y-y1= m2(x-x1)
y-(-3)= -4/3(x-4)
y+3= -4/3x+16/3
y= -4/3+16/3-3
3y= -4x+16-9
3y= -4x+7
atau
4x+3y-7= 0
Jadi persamaannya adalah :
3y= -4+7
atau
4x+3y-7= 0