Question

Kerjakan no 195 & 196 Jawab dengan sejelas-jelasnya trmksh..

Answer 1

195. gradien k = Δy / Δx = (7-2) / (4-0) = 5/4
y = mx + c
c = titik potong sumbu y, maka

y = mx + c
y = (5/4)x + 2
4y = 5x + 8
5x – 4y = -8 (Opsi C)

196. Garis A tegak lurus garis B
mA × mB = –1
–3/2 × mB = –1
mB = ⅔
c = 3

y = mx + c
y = ⅔x + 3
3y = 2x + 9
2x – 3y = –9 (Opsi B)