Question

Problem Page
A line passes through the point
, −4−2
and has a slope of
−3
.

Write an equation in point-slope form for this line.

Answer 1

y-y1 = m*(x-x1) where m is the slope and x1, y1 is the coordinate on the line.

Answer 2

Plug in the values to get the answer

Answer 3

oh ok

Answer 4

Do you know how does one derive to that form of equation?
It's called the point slope form.

Answer 5

The derivation of that form comes from the basic definition of slope.

Answer 6

Point-slope form is written like this:

(y - y1) = m(x - x1)

In point-slope form, y1 is the y value of the known point on the line, m is the slope and x1 is the x value of the known point.

In your problem, (x1,y1) = (−4−2)

m= −3

Fill that into the form for the line:

(y - y1) = m(x - x1)

Answer 7

i have a huge headache can you give m the answer bro?

Answer 8

3x + y + 14 = 0