What is the slope of the line that passes through the points (–6,1) and (4,–4)?
A. -2
B. 2
C. -½
D. ½
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OpenStudy (nubeer):
m = (y2-y1)/(x2-x1)
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
so what do i do next
OpenStudy (amistre64):
well, if youve used the formula correctly, you choose the option that matches it
OpenStudy (nubeer):
plug in the values u have of x1,x2,y1,y2
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OpenStudy (amistre64):
personally, i step thru it
subtract one point from the other and stack y over x
OpenStudy (amistre64):
(–6, 1)
-( 4,–4)
-------
x , y ; slope = y/x
OpenStudy (anonymous):
do i subtract
OpenStudy (amistre64):
yes
OpenStudy (amistre64):
(–6, 1)
-( 4,–4)
-------
x , y
what do you get for x and y?
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OpenStudy (anonymous):
2=x y=1
OpenStudy (amistre64):
(–6, 1)
-( 4,–4)
-------
-10, 5
OpenStudy (anonymous):
ok i c
OpenStudy (amistre64):
now just stack y/x and simplify the fraction
OpenStudy (anonymous):
negative one half
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OpenStudy (amistre64):
correct
OpenStudy (anonymous):
thank you for yur help
OpenStudy (amistre64):
i have to do it in that way, becasue i tend to put the wrong values into the wrong places inthe formula.
subtract and stack is much simpler for me to keep things straight :)
good luck