Mathematics
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OpenStudy (anonymous):
PLEASE HELP I REALLY NEED IT!!!!!!
11 years ago
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OpenStudy (anonymous):
Part A: Nadia rented a stage platform at $410 for 4 days. If she rents the same stage platform for 8 days, she has to pay a total rent of $770.
Write an equation in the standard form to represent the total rent (y) that Nadia has to pay for renting the stage platform for x days. (4 points)
Part B: Write the equation obtained in Part A using function notation.(2 points)
Part C: Describe the steps to graph the equation obtained above on the coordinate axes. Mention the labels on the axes and the intervals. (4 points)
11 years ago
OpenStudy (anonymous):
@SolomonZelman @bohotness @poopsiedoodle @TheSmartOne
11 years ago
OpenStudy (xapproachesinfinity):
your equation would be of the kind y=mx+b
where y represents the total rental payment
and x is how many days rented
11 years ago
OpenStudy (xapproachesinfinity):
do you know how to find the slope
11 years ago
OpenStudy (xapproachesinfinity):
you are given two points
(770, 8) and (410, 4)
11 years ago
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OpenStudy (anonymous):
ok
11 years ago
OpenStudy (anonymous):
@xapproachesinfinity
11 years ago
OpenStudy (xapproachesinfinity):
well what is the slope?
11 years ago
OpenStudy (xapproachesinfinity):
how do you find the slope
11 years ago
OpenStudy (anonymous):
y=mx +b ?
11 years ago
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OpenStudy (anonymous):
or y1-x1/y-x2?
11 years ago
OpenStudy (xapproachesinfinity):
that is the equation not the slope
the slopl=e is just m
11 years ago
OpenStudy (anonymous):
oh srry
11 years ago
OpenStudy (xapproachesinfinity):
it is \[m=\frac{y_2-y_1}{x_2-x_1}\]
11 years ago
OpenStudy (anonymous):
ok
11 years ago
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OpenStudy (xapproachesinfinity):
now i have given you the points you need above
11 years ago
OpenStudy (anonymous):
so what is the equation ?
11 years ago
OpenStudy (xapproachesinfinity):
first find the slope before finding the equation
11 years ago
OpenStudy (xapproachesinfinity):
use the point i wrote above
you have y_2, y_1
x_2, x_1
11 years ago
OpenStudy (xapproachesinfinity):
these are the two points \[(770, 8)\] and \[(410, 4)\]
11 years ago
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OpenStudy (anonymous):
ok
11 years ago
OpenStudy (anonymous):
4-8/410-770 @xapproachesinfinity
11 years ago
OpenStudy (xapproachesinfinity):
the opposite my friend
11 years ago
OpenStudy (anonymous):
? please show me
11 years ago
OpenStudy (xapproachesinfinity):
eh my mistake i wrote it inccorectly
11 years ago
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OpenStudy (xapproachesinfinity):
should be \[(8, 770)\] and \[(4,410)\]
11 years ago
OpenStudy (anonymous):
770-410/8-4?
11 years ago
OpenStudy (xapproachesinfinity):
so it should be 770-410/8-4
11 years ago
OpenStudy (xapproachesinfinity):
yes
11 years ago
OpenStudy (anonymous):
slope is 90
11 years ago
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OpenStudy (anonymous):
m= 90 right ?
11 years ago
OpenStudy (xapproachesinfinity):
yes
11 years ago
OpenStudy (xapproachesinfinity):
now you have y=90x+b
to find b
just plug in (4, 410)
so 410=90(4)+b
then solve for b
11 years ago
OpenStudy (anonymous):
b=-50?
11 years ago
OpenStudy (anonymous):
or positive?
11 years ago
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OpenStudy (anonymous):
@xapproachesinfinity
11 years ago
OpenStudy (anonymous):
@Nnesha @confluxepic @pooja195
11 years ago
pooja195 (pooja195):
There are not negatives so positive also
WELCOME TO OPENSTUDY!! :D
11 years ago
OpenStudy (anonymous):
@sleepyjess
11 years ago
OpenStudy (xapproachesinfinity):
well 410 is bigger than 360 so why did you get a negative you should have b=50
11 years ago