# Thread: Slope question: In the formula 'y=mx+b' what is 'b'?

1. ## Slope question: In the formula 'y=mx+b' what is 'b'?

In the formula "y=mx+b" what is "b"? I've never quite been able to figure that out.

2. ## Re: Slope question

Originally Posted by jubilee21
In the formula "y=mx+b" what is "b"? I've never quite been able to figure that out.
Mathematically:

That is the value of 'y' when x = 0.

Geometrically:

That is the height of the point on y-axis (from the origin) - where the straight line intersects the y-axis.

It is generally referred to as the "y-intercept" of the line.

3. y=mx+b

m is slope
b is y intercept

#### Posting Permissions

• You may not post new threads
• You may not post replies
• You may not post attachments
• You may not edit your posts
•