What is the y-intercept of the line on your graph?

Question

anonymous · Answer

attachment

dumbcow · Answer

y-intercept is the value of y when x=0, this coincides with where the graph crosses the y-axis
It can be found for any line given a point and the slope of the line
-> y=mx + b
->b = y - mx

anonymous · Answer

The point that is located on  the y-axis (: [the 
vertical line]

anonymous · Answer

looks like you gotta give it you best guess.

dumbcow · Answer

If you know the data points on the graph use them to find the slope
-> m = (y2-y1)/(x2-x1)
use this to determine y-intercept

anonymous · Answer

hah!  but only one data point is for sure... gotta follow line and guess at it lol

dumbcow · Answer

pretty sure you dont have to guess
using the 2 points (11,10132), (15,10180)
i get a slope of 12 and y-intercept of 10,000

anonymous · Answer

graph only show on point on a line that is known.  how you gonna know the other point with accuracy?  you aint.  gotta guess.

anonymous · Answer

you aint wrong, but you aint right lol

dumbcow · Answer

lol ok yes i guessed but it was a pretty educated guess
plus it makes sense for the initial value to be a rounded figure like 10,000 :)

dumbcow · Answer

ermamoss does this make sense now?

anonymous · Answer

i am lost

dumbcow · Answer

ok you are given this graph with a linear line
every linear line is of the form y=mx+b
where m is the slope of the line and b is where it crosses the y-axis
ok?
where are you at in school?

anonymous · Answer

i am in college algebra i get everything except the slope and the y-intercept

dumbcow · Answer

ok for the line the x-values are the input and the y-values are the output
slope is looking at how much y changes for every change of 1 in x
rise/run
go to the graph pick a point and then count how far you go up and over to get to the next point, thats slope

anonymous · Answer

y=mx+b  the 'm' is the y-slope, rise over run. the 'b' is the y-intercept, the point that is on the y-axis.

dumbcow · Answer

gotta go good luck

anonymous · Answer

ok thanks

anonymous · Answer

slope is how much line leans up or down

anonymous · Answer

intercept means to catch the ball.  y line catches the ball at what spot on it?

anonymous · Answer

That a good way thanks