Question

Write an equation of the line that passes through the points (1,-4) and (2,-1).

An equation of the line is y=
]
PLEASE HELP!!

Answer 1

y = 3x -7

Explanation:

The 2-point form of the equation of a line is useful for this.

y = (y2 -y1)/(x2 -x1)(x -x1) +y1

y = (-1 -(-4))/(2 -1)(x -1) -4

y = 3(x -1) -4

y = 3x -7