bobobox
  • bobobox
Generic algebra help would be lovely
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
bobobox
  • bobobox
@jim_thompson5910
bobobox
  • bobobox
bobobox
  • bobobox
the real person who deserves the medal is @jim_thompson5910

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UsukiDoll
  • UsukiDoll
yeah but you have attempted the problem too... so I give medals off based on explanations or attempts.
UsukiDoll
  • UsukiDoll
you can click on the best response button for jim to give him a medal. I can only medal once.
bobobox
  • bobobox
i shall and I will
UsukiDoll
  • UsukiDoll
so anyway we have an equation y = 500+50x Every straight line can be expressed in the form y = mx +b where m = slope and b = y-intercept
UsukiDoll
  • UsukiDoll
hmm.. maybe rewriting this might help y = 50x+500
bobobox
  • bobobox
This is all new to me so if you can explain this to me in really really really simple form it would be very much apreciated
UsukiDoll
  • UsukiDoll
however... there's also this fact too... to find the y-intercept, set x to 0
UsukiDoll
  • UsukiDoll
I could try... :/ your question is A company is paying a local television station to run its commercials. The cost of running commercials is a one time campaign fee and also a per-second fee for the air time of each commercial. The cost can be modeled by the equation y = 500+50x where x is in seconds. What is the y-intercept and what does it represent?
UsukiDoll
  • UsukiDoll
given . . . the model of the equation is y = 500+50x x is in seconds the costs includes a one time campaign fee and also a per-second fee.
bobobox
  • bobobox
okay so I am going to figure out the y intercept
UsukiDoll
  • UsukiDoll
ok.
bobobox
  • bobobox
500?
UsukiDoll
  • UsukiDoll
to find the y-intercept we set our x to 0 y=500+50(0) y =500+0 = 500
UsukiDoll
  • UsukiDoll
now we just have to figure out what that 500 means
bobobox
  • bobobox
okay...
bobobox
  • bobobox
I hate these riddles, teachers call math problems
UsukiDoll
  • UsukiDoll
It's based on word order. (I think?) The cost of running commercials is a one time campaign fee and also a per-second fee for the air time of each commercial. oh yeah those problems are irritating.
UsukiDoll
  • UsukiDoll
@jim_thompson5910 Helllllllppppppp D:!
bobobox
  • bobobox
@jim_thompson5910 please
UsukiDoll
  • UsukiDoll
I need a second opinion.. i know to find y-intercept set x to 0
jim_thompson5910
  • jim_thompson5910
UsukiDoll you have the right idea. Plug in x = 0
UsukiDoll
  • UsukiDoll
so I got 500, but what the heck does it represent?
bobobox
  • bobobox
yeah
UsukiDoll
  • UsukiDoll
the word order matters when it comes to these problems....I think it's campaign fee.
jim_thompson5910
  • jim_thompson5910
it's the one time fee you always pay no matter how much airtime you get the +50x means "add 50 dollars per second of airtime used up"
UsukiDoll
  • UsukiDoll
but we set x to 0 when we had to find the y-intercept
jim_thompson5910
  • jim_thompson5910
so the campaign makes a downpayment of $500 if it uses 30 seconds of airtime, then it pays 50*30 = 1500 extra dollars
jim_thompson5910
  • jim_thompson5910
yeah plugging in x = 0
UsukiDoll
  • UsukiDoll
???????????????!
bobobox
  • bobobox
okay so.....you pre pay 500 dollars is that what it represents?
UsukiDoll
  • UsukiDoll
to find the y-intercept we set our x to 0 y=500+50(0) y =500+0 y=500
UsukiDoll
  • UsukiDoll
but wow the labels D:
bobobox
  • bobobox
i know
UsukiDoll
  • UsukiDoll
let's break this down a bit A company is paying a local television station to run its commercials. The cost of running commercials is a one time campaign fee and also a per-second fee for the air time of each commercial. The cost can be modeled by the equation y = 500+50x where x is in seconds. What is the y-intercept and what does it represent?
jim_thompson5910
  • jim_thompson5910
`okay so.....you pre pay 500 dollars is that what it represents?` yes, correct
UsukiDoll
  • UsukiDoll
that +50x must be the per-second fee ??
jim_thompson5910
  • jim_thompson5910
yeah, the 50 to be specific
bobobox
  • bobobox
okay.............
UsukiDoll
  • UsukiDoll
oh I see if x = 1 that's 1 second
UsukiDoll
  • UsukiDoll
50(1) = that's 50 bucks
bobobox
  • bobobox
it either represents a one time fee or a per second fee
UsukiDoll
  • UsukiDoll
but we need the initial fee too y = 500+50(1) = 500+50 = 550 for one second
UsukiDoll
  • UsukiDoll
it's the setup initial fee... the x is the number of seconds.. so if you have 1 second airtime, that's $550
bobobox
  • bobobox
okay... so it is b?
UsukiDoll
  • UsukiDoll
y = 500+50x for y -intercept if x = 0 we just have y = 500 that's just an initial fee with 0 seconds airtime
bobobox
  • bobobox
okay that makes some sense now!
UsukiDoll
  • UsukiDoll
yeah... 500 is the one time initial fee you're paying.. then for x = number of seconds your fee goes up so if x = 50 y = 500+50(50) 500 <- initial fee 50<- airtime fee x = 50 <-- seconds here's your bill y = 500+250 =750
UsukiDoll
  • UsukiDoll
oops I meant 500+2500 = 3000
UsukiDoll
  • UsukiDoll
lack of sleep x.x
bobobox
  • bobobox
ohhhhhhhhhhh okay this make sense now. So it's b
UsukiDoll
  • UsukiDoll
mhm :) yes it's b
bobobox
  • bobobox
Are we sure because like I said I cant mess up @jim_thompson5910 what do you think...B?
UsukiDoll
  • UsukiDoll
putting this in words y = initial fee + airtime fee (seconds) yeah it's good to have a second opinion
bobobox
  • bobobox
JUst to make sure even though it makes sense to me
bobobox
  • bobobox
@jim_thompson5910
UsukiDoll
  • UsukiDoll
I'm trying to find another tutor.. he is busy right now
bobobox
  • bobobox
hmmm
UsukiDoll
  • UsukiDoll
@perl help !
bobobox
  • bobobox
@perl help
jim_thompson5910
  • jim_thompson5910
you guys have it correct
UsukiDoll
  • UsukiDoll
yay!
bobobox
  • bobobox
are we sure?
jim_thompson5910
  • jim_thompson5910
yeah
bobobox
  • bobobox
yay!
bobobox
  • bobobox
kk im closeing this one and opening a new one!

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