Generic algebra help would be lovely

- bobobox

Generic algebra help would be lovely

- Stacey Warren - Expert brainly.com

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- jamiebookeater

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- bobobox

@jim_thompson5910

- bobobox

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- bobobox

the real person who deserves the medal is @jim_thompson5910

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## More answers

- UsukiDoll

yeah but you have attempted the problem too... so I give medals off based on explanations or attempts.

- UsukiDoll

you can click on the best response button for jim to give him a medal. I can only medal once.

- bobobox

i shall and I will

- 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

hmm.. maybe rewriting this might help
y = 50x+500

- 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

however... there's also this fact too... to find the y-intercept, set x to 0

- 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

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

okay so I am going to figure out the y intercept

- UsukiDoll

ok.

- bobobox

500?

- UsukiDoll

to find the y-intercept we set our x to 0
y=500+50(0)
y =500+0 = 500

- UsukiDoll

now we just have to figure out what that 500 means

- bobobox

okay...

- bobobox

I hate these riddles, teachers call math problems

- 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

@jim_thompson5910 Helllllllppppppp D:!

- bobobox

@jim_thompson5910 please

- UsukiDoll

I need a second opinion.. i know to find y-intercept set x to 0

- jim_thompson5910

UsukiDoll you have the right idea. Plug in x = 0

- UsukiDoll

so I got 500, but what the heck does it represent?

- bobobox

yeah

- UsukiDoll

the word order matters when it comes to these problems....I think it's campaign fee.

- 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

but we set x to 0 when we had to find the y-intercept

- 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

yeah plugging in x = 0

- UsukiDoll

???????????????!

- bobobox

okay so.....you pre pay 500 dollars is that what it represents?

- UsukiDoll

to find the y-intercept we set our x to 0
y=500+50(0)
y =500+0
y=500

- UsukiDoll

but wow the labels D:

- bobobox

i know

- 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

`okay so.....you pre pay 500 dollars is that what it represents?`
yes, correct

- UsukiDoll

that +50x must be the per-second fee ??

- jim_thompson5910

yeah, the 50 to be specific

- bobobox

okay.............

- UsukiDoll

oh I see if x = 1 that's 1 second

- UsukiDoll

50(1) = that's 50 bucks

- bobobox

it either represents a one time fee or a per second fee

- UsukiDoll

but we need the initial fee too
y = 500+50(1) = 500+50 = 550 for one second

- 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

okay... so it is b?

- 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

okay that makes some sense now!

- 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

oops I meant 500+2500 = 3000

- UsukiDoll

lack of sleep x.x

- bobobox

ohhhhhhhhhhh okay this make sense now. So it's b

- UsukiDoll

mhm :) yes it's b

- bobobox

Are we sure because like I said I cant mess up @jim_thompson5910 what do you think...B?

- UsukiDoll

putting this in words
y = initial fee + airtime fee (seconds)
yeah it's good to have a second opinion

- bobobox

JUst to make sure even though it makes sense to me

- bobobox

@jim_thompson5910

- UsukiDoll

I'm trying to find another tutor.. he is busy right now

- bobobox

hmmm

- UsukiDoll

@perl help !

- bobobox

@perl help

- jim_thompson5910

you guys have it correct

- UsukiDoll

yay!

- bobobox

are we sure?

- jim_thompson5910

yeah

- bobobox

yay!

- bobobox

kk im closeing this one and opening a new one!

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