Algebra
19 Online
OpenStudy (zuha):
Find the slope of the line
Choose the correct answer:
5
-5
1/5
-1/5
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Nnesha (nnesha):
where is line ??
OpenStudy (zuha):
ops I thought i did add the attachment, weit
Nnesha (nnesha):
okay :)
OpenStudy (zuha):
Here it is
Nnesha (nnesha):
slope is rise over run
first see if line is increasing or decreasing ??
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OpenStudy (zuha):
increasing
Nnesha (nnesha):
then slope should be positive
if line decreasing then slope negative
Nnesha (nnesha):
so cancel out two answer choices
OpenStudy (zuha):
ok
OpenStudy (zuha):
I though I should use the formula y2-y1/x2-x1
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Nnesha (nnesha):
u can
OpenStudy (zuha):
so you mean I should cancel choices with -ve answers
Nnesha (nnesha):
find two points and plug that into formula
OpenStudy (zuha):
I tried the formula but was not getting any answer from the choices :(
Nnesha (nnesha):
but you know line is increasing so it should be positive now see how many step is going up and how many step is going right side
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OpenStudy (zuha):
ok
OpenStudy (zuha):
3 steps up and 6 steps right
Nnesha (nnesha):
your line is crossing where is red dot
OpenStudy (zuha):
yes
OpenStudy (zuha):
then
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Nnesha (nnesha):
here line make triangle now see how many step it is going up and then right
OpenStudy (zuha):
1 up and 5 right
OpenStudy (zuha):
so the answer is 1/5
Nnesha (nnesha):
yes so rise /run
Nnesha (nnesha):
yes
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OpenStudy (zuha):
ok got it thanks
Nnesha (nnesha):
my pleasure