Answer:
B. y = -3x + 1
Step-by-step explanation:
- A(1,-2) → (x1, y1)
- B(0,1) → (x2, y2)
straight line equation?
Answer:
y-y1 / y2 - y1 = x - x1 / x2 - x1
y - (-2) / 1 - (-2) = (x - 1) / (0 - 1)
(y + 2) / (1 + 2) = ( x - 1) / -1
(y + 2) / 3 = (x - 1) / - 1
-1(y + 2) = 3(x - 1)
-y - 2 = 3x - 3
-y = 3x - 3 + 2
-y = 3x - 1
__________ × (-)
y = -3x + 1
