# Hello! I need help from someone to know where is my mistake. I have those coordonate table and if they are linear, I have to find the formula. I'm good with this exercice BUT the 2 red ones are...

Hello!

I need help from someone to know where is my mistake.

I have those coordonate table and if they are linear, I have to find the formula.

I'm good with this exercice BUT the 2 red ones are ALWAYS the one that are wrong...  i dont know what to do.

Also, I saw that the first letter is different: CAP and doenst look like f(g) or f(x).

So... my guess is the formula will be different... I dont have a clue... thank you!

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Expert Answers
tiburtius | Certified Educator

In case b) you've written `R=3.5x+0.0`  but `R`  is not function of `x` but of `q.` In other words your variable is no longer called `x` but it's called `q` instead. So you should have written `3.5q+0.0.`

The same goes for case f) where your variable is `p` instead of `x` and result should be `0.05p+0.00.`

So to summarise the only problem was the names of the variables which may seam trivial to you but is very important once you get to multivariable functions.

adrienvillez | Student

oh no!  and I'm wearing glasses...

thank you!

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