Persamaan garis yang melalui titik (2 7) dan sejajar garis 4x

Dinot05 @Dinot05

September 2018 2 501 Report

Persamaan garis yg melalui titik (2,-7)dan tegak lurus garis 4x-3y+8=0 adalah
a.3x-4y=34
b.3x+4y=-22
c.4x+3y=-13
d.4x-3y=21

Tomtom 4x-3y+8=0
m=4/3

m1.m2 = -1
4/3 . m2 = -1
m2 = -3/4

y-y1=m(x-x1)
y+7=-3/4(x-2)
y+7=-3/4x+6/4
4y+28=-3x+6
3x+4y+22 atau 3x+4y = -22

0 votes Thanks 0

dianags Mari mencari m1 dulu:
4x - 3y = -8
4x + 8 = 3y
4/3x +8/3 = y
maka m1 = koefisien x = 4/3
Karena tegak lurus menggunakan m2, maka:
m1 * m2 = -1
4/3 * m2 = -1
m2 = -1/4/3
m2 =-1/4 * 3 = -3/4

titik (2, -7)
x1 = 2 dan y1 = -7, maka:
y - y1 = m(x - x1)
y - (-7) = -3/4(x - 2)
y + 7 = -3/4x + 6/4(kedua ruas dikalikan 4 untuk menghilangkan penyebut)
4y + 28 = -3x + 6
4y + 3x = -28 + 6
3x + 4y = -22

1 votes Thanks 1

melviaaj makasihhh

Persamaan garis yg memiliki titik (-5,3)dan sejajar garis y=4x+9 adalah a.y=-5x+2 b.y=x+8 c.y=4x+17 d.y=4x+23

Answer

Dinot05 September 2018 | 0 Replies

Gradien dari garis yg memiliki persamaan 3(5-2x)-4(y+2)=0 adalah a.-3/2 b. -2/3 c.2/3 d.3/2

Answer

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The current resurrection of the South Bend model of machines brings a famend title again to {the marketplace}, and the SB1080 16-in. bandsaw is a worthy a part of the corporate’s lineage. I made a bunch of sawdust with numerous gentle and laborious woods and was impressed with the noticed’s easy energy and vibration-free operation. This large bandsaw ought to serve any woodworker effectively.

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The massive desk, measuring 20-7⁄8 in. by 25-5⁄8 in., is a really heavy casting that’s supported on stout trunnions. Angling it for bevel cuts isn’t any problem because of a rack-and-pinion system. The 2-position aluminum fence slides easily and locks precisely. The space from the guides to the noticed body is 13 in. with the fence and 15-3⁄4 in. with out.

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—Roland Johnson is a contributing editor.

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