Question

Which is the equation of the given line in point- slope form?

y - 0 = 1(x+8)
y - 0 = -1(x-8)
y = - x + 8
y - 8 = -1(x+0)

Answer 1

`y-0=-1(x-8)`

Explanation:

The given line passes through (0,8) and (8,0).

The slope of this line is
`m=(8-0)/(0-8) =-1`.

The point-slope form is given by:

`y-y_1=m(x-x_1)`

We substitute the slope and the point (8,0) to get:

`y-8=-1(x-0)`

We substitute the slope and the point (0,8) to get:

`y-0=-1(x-8)`