A few days ago
how do i find the y intercept?
the two coordinates are (4,3) and (2,5) thus, the slope is -3/5. how do i get the y-intercept?
refer to this pic
http://i53.photobucket.com/albums/g60/idioticmonkey43/graph.jpg
AND SHOW AND EXPLAIN TO ME STEP BY STEP!!!
Top 3 Answers
A few days ago
Favorite Answer
You need to start with the correct slope. To find the slope you need to take y minus y over x minus x
5-3/2-4
meaning 2/-2 (reduced your slope is 1/-1)
to find the y intercept, you need to use the equation y=mx+b
(m is the slope, and b is the y intercept)
Use either of the (x,y) coordinates to find your y intercept:
3= -1*4+b
3= -4 +b
(add 4 to both sides)
7=b
OR
5= -1*2+b
5= -2+b
7=b
y-intercept is 7
0
A few days ago
Actually the slope is (5-3) over (2-4) = 2/-2 = -1
So the equation in y = mx + b form starts like y = -1x + b, where m = slope and b = y-intercept.
Now replace x and y with (4,3) getting 3 = -4 + b
Add 4 to both sides you get 7 = b
So the y-int. is 7
0
A few days ago
oh! darn it…i just learned that last year..um i think it’s something like…oh i’m so sorry i totally forgot the form.
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