Question

2). Tentukan persamaan garis yang melalui titik (–12, 7) dan bergradien berikut !
a).4
b). 2per 3 atau ⅔
c). –7
d). –1 1per 4 atau –1¼
Tolong di jawab yahh....senin udah dikumpul

Answer 1

A)     y-y1 = m (x-x1)
y-7 = 4 (x- (-12))
y-7 = 4 (x + 12)
y-7 = 4x + 48
y-4x  = 7+ 48
y-4x = 55

b)    y-y1  = m (x-x1)
       y-7 = 2/3 ( x + 12)
       3y - 21 = 2x + 24
       3y - 2x = 21 +24
       3y - 2x = 45

c)   

Answer 2

C.y-y1=m(x-x1)
y-7=(-7)(x+12)
y-7=-7x-84
y=-7x-84+7
y=-7x-77

d.y-y1=m(x-x1)
y-7= - 5/4(x+12)
y-7= -5/4x -15
y= -5/4x-15+7
y=-5/4x -8