Applications - Graphing Linear Equations

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.

Applications - Graphing Linear Equations

Postby bellerum23 on Thu Oct 24, 2013 5:24 pm

A house purchased for $125,000 is expected to appreciate according to the formula y = 7,500x + 125,000, where y is the value of the house after x years. Find the value of the house 5 years later.
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Re: Applications - Graphing Linear Equations

Postby little_dragon on Thu Oct 24, 2013 5:47 pm

bellerum23 wrote:A house purchased for $125,000 is expected to appreciate according to the formula y = 7,500x + 125,000, where y is the value of the house after x years. Find the value of the house 5 years later.

what did U get when U plugged 5 in for x?
:wave:
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Re: Applications - Graphing Linear Equations

Postby bellerum23 on Thu Oct 24, 2013 10:17 pm

Confused about what did U get when U plugged 5 in for x?
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Postby stapel_eliz on Fri Oct 25, 2013 1:17 pm

bellerum23 wrote:Confused about what did U get when U plugged 5 in for x?

You were given a formula for the value of y when given a value of x. You were given a value for x, and asked for the corresponding value of y. You showed no work. The previous poster asked regarding the value you had obtained for y when you plugged the given value for x into the given formula for y.

Where, exactly, are you getting confused?
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Re:

Postby bellerum23 on Fri Oct 25, 2013 9:41 pm

stapel_eliz wrote:
bellerum23 wrote:Confused about what did U get when U plugged 5 in for x?

You were given a formula for the value of y when given a value of x. You were given a value for x, and asked for the corresponding value of y. You showed no work. The previous poster asked regarding the value you had obtained for y when you plugged the given value for x into the given formula for y.

Where, exactly, are you getting confused?


The whole problem. :confused:
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Re: Applications - Graphing Linear Equations

Postby little_dragon on Sat Oct 26, 2013 12:26 am

do U know wat variables are?
do U know wat plug & chug means?
have U taken algebra at all?
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Re: Applications - Graphing Linear Equations

Postby bellerum23 on Sat Oct 26, 2013 12:39 am

little_dragon wrote:do U know wat variables are?
do U know wat plug & chug means?
have U taken algebra at all?
:wave:


I'm taking algebra right now.

The variables are letters. Example: x and y

So is it y = 7,500(5) + 125,000

So is the answer: 162500
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Re: Applications - Graphing Linear Equations

Postby theshadow on Sat Oct 26, 2013 1:20 am

bellerum23 wrote:I'm taking algebra right now.
The variables are letters. Example: x and y

I think the other poster was asking if YOU know what variables are. They teach about varioables in algebra classes. They can't get to "formulas" w/o doing variables and evaluation first. So you not knowing how to plug numbers they give you into formulas they give you makes it sound like you've never done algebr ayet.

bellerum23 wrote:So is it y = 7,500(5) + 125,000
So is the answer: 162500

That's what I get.
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