# I have a problem with this SAT question

• Feb 14th 2013, 09:21 PM
Paze
I have a problem with this SAT question
So I'm playing around with SAT questions and I stumble upon this.

After about an hour of trying I can't seem to get it right:

Question: http://s3.postimage.org/wel17i1cj/bugproblem.png

So I read the explanation which infuriated me (or perhaps made me feel very stupid, we'll see).

Am I right when I say that they are asking you to solve for \$\displaystyle s(10)\$? They then go on to say that \$\displaystyle s=100\$ which is all fine and dandy but then the function would read: \$\displaystyle 100(10)=\$ right? Which makes no sense.
It's like saying: ''\$\displaystyle f(x)=3x\$, where f is the number of units sold and x is the price'', which makes no sense what so ever since \$\displaystyle f\$ denotes a function (same as \$\displaystyle s\$ in their example).

I'm really confused and a little sleep deprived so bear with me...
• Feb 14th 2013, 09:52 PM
jakncoke
Re: I have a problem with this SAT question
They ask you to solve for s(20) and by s = 100, they mean s(p)=100 since s is a function not a variable , so they say when p = 10, s=100 or s(10)=100
• Feb 15th 2013, 06:53 AM
Paze
Re: I have a problem with this SAT question
I really feel like they should state: ''S(P) is the number of units sold''. I've never heard it referred to like that. ''S is the number...''..