What does the y-intercept of a graph show? Does it help in finding the correlation between the two axes/factors? Does a y-intercept of 0 mean a perfect correlation?
2007-03-03 21:46:04 · 4 answers · asked by mbchelsea 1 in Science & Mathematics ➔ Mathematics
Consider the line y = 2x + 3
when x = 0, y = 3
(0,3) is the y intercept of the graph.
This is the point at which the graph crosses the y axis.
I would not think that correlation comes into it.
2007-03-03 21:54:13 · answer #1 · answered by Como 7 · 0⤊ 0⤋
When equations are expressed as:
y=mx + b
B is the y-intercept (and m is the slope)
The y-intercept will show a correlation between the two factors, while the slope is a magnitude of relation between the two.
2007-03-04 05:57:26 · answer #2 · answered by Matthew P 4 · 0⤊ 0⤋
It shows the starting value of a function (when x=0). It also tells you whether there is a direct (if =0) or indirect correlation ( if not = 0).
2007-03-04 05:54:09 · answer #3 · answered by steve 2 · 0⤊ 0⤋
You need any two conditions to properly identify a line.
They can be any one of these :
Two points
Point & Slope
Two Intercepts
Slope Intercept
2007-03-04 06:00:16 · answer #4 · answered by nayanmange 4 · 0⤊ 0⤋