Question

Bantulah no 13-15 dengan jawaban yang jelas dan tepat beserta rumus-rumusnya!!!!!!!!

Answer 1

13) y = ¾x - 8
m = ¾
syrt sejajar m1 = m2
y - y1 = m(x - x1)
y - 12 = ¾(x - 3)
y - 12 = ¾x - 9/4
y = ¾x - 9/4 + 48/4
y = ¾x + 39/4 (a)

14) y - y1 = m (x - x1)
y + 3 = 2/5(x - 6)
y + 3 = 2/5 x - 12/5
------------------------(×5)
5y + 15 = 2x - 12
5y = 2x - 27 (d)

Answer 2

No 13
m = 3/4 koefisien x
y-y1 = m(x-x1)
y-12 = 3/4(x-3)
y = 3/4 x - 39/4

jawaban B

no 14
y+3 = 2/5x - 12/5
y = 2/5 x - 27/5 kalikan 5
5y = 2x - 27

jawaban D

no 15)
m= - (x2-x1)/9y2-y1)
y+7 = -7/8(x-4)
y = -7/8 x + 7/2 - 14/2
y = -7/8 x -7/2 kaliakan 8
8y = -7x -28

jawaban C