Mathematics
14 Online
OpenStudy (anonymous):
What is the slope of the line whose equation is 2x – 4y = 10?
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Mehek (mehek14):
first change it to y = mx + b
OpenStudy (abdullahm):
^
OpenStudy (anonymous):
how
OpenStudy (abdullahm):
Add 4y on both sides
Subtract both sides by 10
Divide both sides by 4
Mehek (mehek14):
move 2x to the other side
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OpenStudy (anonymous):
so what's the answer
Mehek (mehek14):
try to solve for y first
OpenStudy (anonymous):
idk how
OpenStudy (abdullahm):
Then you must figure it out :)
OpenStudy (abdullahm):
We cannot do the work for you. The rules simply do not allow it.
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OpenStudy (anonymous):
the "rules" can smd
OpenStudy (anonymous):
I needs helps
OpenStudy (anonymous):
hhhhhhhheeeeeeeeeeeeelllllllllllllllllllllpppppppppppppp
OpenStudy (abdullahm):
Sorry, but you do not want to cooperate.
OpenStudy (abdullahm):
2x – 4y = 10
Add 4y to both sides
2x - 4y + 4y = 10 + 4y
Can you simplify it a little more? :)
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OpenStudy (anonymous):
idk how
OpenStudy (abdullahm):
Look at the left side
-4y + 4y = ?
What does it equal?
OpenStudy (anonymous):
0?
OpenStudy (abdullahm):
Correct!
OpenStudy (abdullahm):
So now we have
2x = 10 + 4y
Subtract 10 on both sides
2x - 10 = 10 - 10 + 4y
What is 10 - 10 = ?
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OpenStudy (anonymous):
0
OpenStudy (abdullahm):
Correct, once again! See! You do know something! :)
OpenStudy (abdullahm):
So, now we have
4y = 2x - 10
We need to divide 4 on both sides
What is 4/4 = ?
What is 2/4 = ?
And, finally, what is 10/4 = ?
OpenStudy (anonymous):
2.5?
OpenStudy (abdullahm):
Yes, 10/4 = 2.5
What about 4/4 = ?
And 2/4 = ?
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OpenStudy (anonymous):
1 & 0.5?
OpenStudy (abdullahm):
correct!
OpenStudy (abdullahm):
So now we have
y = 0.5x + 2.5
OpenStudy (anonymous):
so what's the answer
OpenStudy (abdullahm):
Ok, now we got your equation in y = mx + b form :)
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OpenStudy (anonymous):
now what?
OpenStudy (abdullahm):
In the form y = mx + b, the m is the slope :)
OpenStudy (abdullahm):
so in y = 0.5x + 2.5
what is the slope?
Hint: it's the number before x
OpenStudy (anonymous):
0.5?
OpenStudy (abdullahm):
Correct! That's your answer! :D
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OpenStudy (abdullahm):
Now, that wasn't so hard was it? :)
OpenStudy (anonymous):
but the answer is supposed to be a fraction?
OpenStudy (abdullahm):
oh, in that case it would be 1/2
OpenStudy (anonymous):
oh ok thank you so much for all your help
OpenStudy (abdullahm):
It was my pleasure! :D