A line has a slope of -3 and passes through the point (5,-1). what is the equation of the line?

Question

asked Feb 23, 2020 156k views

2 Answers

Tawfeeq Amro · Answer 1 · 2020-02-29T20:10:18+0000

Answer:

y=-3x+14

Explanation:

Use slope intercept form.

y=mx+b

Where m is the slope and b is the y intercept.

We know the slope is -3 because it is given, so substitute it for m.

y=-3x+b

Now we need to solve for b, and we can do this by plugging in the given point into our equation so far.

$-1=-3(5)+b \\ \\ -1 = b-15 \\ \\ b=14$

So our final equation will be
y=-3x+14