# Algebra

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Assume that the mathematical model C(x) = 16x + 130 represents the cost C, in hundreds of dollars, for a certain manufacturer to produce x items. How many items x can be manufactured while keeping costs between \$525,000 and \$781,000? Thanks for the help in advance! :)

• Algebra -

Ohhh ,i'm on this chapter right now. Okay, is there a value for x? if not, make an x and y table chart, i normally start with zero which i highly recomend you doing.

okay once you decide on what you are going to set x as, fill it in like this:

Example- C(0)= 16(0)+130
C(0)= 0 +130
C(0)= 130

You try it now.

if you have any questions, i'm right here waiting to answer them.

• Algebra -

5,250=16x+130

16x=5,250-130

16x=5,120

x=5,120/16

x=320

7,810=16x+130

16x=7,810-130

16x=7,680

x=7,680/16
x=480

This is what I came up with is this correct?

• Algebra -

I got the same thing. I hope it's right

• Algebra -

what did you set x as?
oh, i get it , you're trying to do the linear equation type of way, he's talking about linear functions, you know... f(x)=mx+b

• Algebra -

So is {x| 320 < x <480 correct?

• Algebra -

Where did this question come from?