Mathematics
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OpenStudy (jamaljunior):
Question: https://gyazo.com/4e39a81300efd356971f9040db35d5b7
Answers: (In Order)
https://gyazo.com/b00b334f084a25570db96410e94f38ea
https://gyazo.com/7f6ff70b711dd4dd89f406a9046d3d7d
https://gyazo.com/1ca1bf34d8a001de4225e11f884ad777
https://gyazo.com/a0751a48b21165c4d46bdf6798a40af7
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OpenStudy (3mar):
May I help?
OpenStudy (3mar):
@JamalJunior
OpenStudy (jamaljunior):
Of course @3mar
OpenStudy (3mar):
Thank you.
OpenStudy (3mar):
What did you get?
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OpenStudy (jamaljunior):
nothing yet, idk where to start
OpenStudy (3mar):
One minute please
OpenStudy (jamaljunior):
okay
OpenStudy (3mar):
Can you calculate the slope?
OpenStudy (3mar):
next we will discuss what its meaning!
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OpenStudy (jamaljunior):
mx + b?
OpenStudy (jamaljunior):
is it 2.5
OpenStudy (jamaljunior):
up 2 over 1?
OpenStudy (3mar):
only m is the slope.
Do you have the equation or just the graph?
OpenStudy (jamaljunior):
just the graph
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OpenStudy (3mar):
ok
now you ought to find two points and cal. the slope
OpenStudy (jamaljunior):
what two points?
OpenStudy (3mar):
any two points on the kine
OpenStudy (3mar):
line*
OpenStudy (jamaljunior):
ok 3 and .5 but how do i calculate the slope?
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OpenStudy (3mar):
what are the points you got?
OpenStudy (jamaljunior):
3 and .5
OpenStudy (3mar):
the point looks like that
(x,y) nit just two values
OpenStudy (3mar):
not*
OpenStudy (jamaljunior):
3y and .5x?
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OpenStudy (3mar):
you mean (0,3)?
OpenStudy (jamaljunior):
i guess
OpenStudy (3mar):
and the second?
OpenStudy (3mar):
The more accurate one is (2,8) am I right?
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OpenStudy (jamaljunior):
yeah
OpenStudy (3mar):
good
can you now find out the slope?
OpenStudy (jamaljunior):
idk how
OpenStudy (3mar):
Try this
Hope that helps
OpenStudy (3mar):
Did you get it?
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OpenStudy (jamaljunior):
no
OpenStudy (jamaljunior):
y8- y1
-----
x2 - x1
OpenStudy (3mar):
plug in the two points in this form of the slope
\[m=\frac{(y_2-y_1)}{(x_2-x_1)}\]
OpenStudy (jamaljunior):
m = (y8 - y1)
--------
(x2 - x1)
OpenStudy (3mar):
it will be
\[m=\frac{8-3}{2-0}\]
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OpenStudy (jamaljunior):
where did u get 3 and 0 from ?
OpenStudy (3mar):
Don't we have two points (0,3) and (2,8)?
from the graph
OpenStudy (jamaljunior):
oh
OpenStudy (3mar):
so you got it now
OpenStudy (3mar):
ok?
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OpenStudy (jamaljunior):
yes.
OpenStudy (jamaljunior):
so its 2.5?
5 / 2
OpenStudy (3mar):
Great! it is 2.5
OpenStudy (jamaljunior):
what does the slope represent?
OpenStudy (3mar):
so you will choose 2.5 from the drop-down menu.
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OpenStudy (3mar):
What did you pick?
OpenStudy (jamaljunior):
i havent picked anything
OpenStudy (3mar):
so what do you think the output from the division of "cost of taxi" by distance traveled?
OpenStudy (jamaljunior):
is it the cost per mile traveled?
OpenStudy (3mar):
It is of course!
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OpenStudy (jamaljunior):
great.
can we do the next one?
OpenStudy (3mar):
I am with you
OpenStudy (jamaljunior):
how do we start this one?
OpenStudy (3mar):
the 3rd one?
OpenStudy (jamaljunior):
yes
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OpenStudy (3mar):
He wants where the line cut/touch/intercept to the y-axis!
OpenStudy (jamaljunior):
how do get it
OpenStudy (3mar):
read it directly from the y-axis
OpenStudy (jamaljunior):
3
OpenStudy (3mar):
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