Mathematics
10 Online
OpenStudy (anonymous):
need help!
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OpenStudy (anonymous):
does anyone know how to do slopes?
OpenStudy (kidrah69):
i know
OpenStudy (anonymous):
find the slope of the line through (-9,-10) and (-2,-5).
OpenStudy (kidrah69):
\[\frac{ y2-y1 }{ x2-x1 }\]
OpenStudy (kidrah69):
slope formula now plug in the numbers
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OpenStudy (anonymous):
a. -5/7
b. 7/5
c. 5/7
d.-7/5
OpenStudy (anonymous):
ok i'll try and figure it out? please stay?
OpenStudy (kidrah69):
\[\frac{ -5-(-10) }{ -2-(-9) }\]
OpenStudy (kidrah69):
ill be here dont worry :)
OpenStudy (kidrah69):
do you know how to solve that?
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OpenStudy (anonymous):
2 and 7?
OpenStudy (kidrah69):
7 is right not the 2
OpenStudy (anonymous):
5
OpenStudy (kidrah69):
yep so what the final answer?
OpenStudy (anonymous):
5/7 or c
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OpenStudy (kidrah69):
5/7 would be correct :)
OpenStudy (anonymous):
can you help me with one more?
OpenStudy (kidrah69):
sure repost it though :)
OpenStudy (anonymous):
draw a line with a slope of 1/4 through the point (0,-4)
OpenStudy (kidrah69):
y=mx+b
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OpenStudy (kidrah69):
m=slope
OpenStudy (anonymous):
is that the formula?
OpenStudy (anonymous):
hello?
OpenStudy (kidrah69):
yeah
OpenStudy (anonymous):
i dont get it?
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OpenStudy (anonymous):
wait whats the b
OpenStudy (kidrah69):
OK slope is M so
y=1/4x+b
OpenStudy (kidrah69):
B is the y intercept
OpenStudy (kidrah69):
look at your coordinate
OpenStudy (anonymous):
ok thanks for your help? but i have to go now
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OpenStudy (kidrah69):
ok the y intercept is -4 so just put it in your equation and your welcome