Question

Which of the following equations represents a line that passes through the points

(4, -15) and (-1,0)?
I. 3x + y = -2
II. y + 15 = -3(x – 4)
ONeither
O I only
O II only
O I and II

Answer 1

Explanation:

the slope = (0+15)/(-1-4)=15/(-5)= -3

the Equation :

y+15= -3(x-4)

or

y+15 = -3x+12

y +3x=12-15

3x + y = -3

so, the correct answer is II only

Answer 2

y + 15 = -3(x - 4) II only

Explanation:

y2 - y1 / x2 - x1

0 - (-15) / -1 - 4

15 / -5

= -3

- Since the slope is -3, the answer can't be 1.

y + 15 = -3(x - 4)