• We’re currently investigating an issue related to the forum theme and styling that is impacting page layout and visual formatting. The problem has been identified, and we are actively working on a resolution. There is no impact to user data or functionality, this is strictly a front-end display issue. We’ll post an update once the fix has been deployed. Thanks for your patience while we get this sorted.

Math review help

L

LeetViet

Platinum Member
What does it mean if a question has:

f(x)
does that count as another x value? what's the f?

Question is x = 5
does that mean x = 5 and y = 0 ?

f:x ->
and
g:x ->
 
Not funny ppl, i aint laughing cause i can answer that.

When ever u see things like f(x), its said as f is a function of x.

We use this term to represent Integral.

But since the value of X is given, use it on the equation.

Check the question because thier will be a full equation like f(x)= X + Y (something)

That doesnt mean Y=0.

If u paste the whole question here, i'll solve it for you😛
 
f(x) = 2x -1
---
3

x = 5

f:x -> 3x - 1
g:x -> 2x - 1
---
3

Thanks for your help!

Edit: My ASCII skills failed. The three dashes represent division.
Those are 4 different questions.
 
whats so difficult in that, can i ask ur grade and ofcourse ur age 😛

Simply put X=5 in both eqaution,

2(5) -1 = 9
3(5) -1 = 14

Thats ur cordinate (9,14) although im still thinking what g stands for

What else??
 
Originally posted by: LeetViet
What does it mean if a question has:

f(x)
does that count as another x value? what's the f?

Question is x = 5
does that mean x = 5 and y = 0 ?

f:x ->
and
g:x ->
Click to expand...

you know whats crazy, i had the same HW tonight 😕
 
Originally posted by: zakee00
Originally posted by: LeetViet
What does it mean if a question has:

f(x)
does that count as another x value? what's the f?

Question is x = 5
does that mean x = 5 and y = 0 ?

f:x ->
and
g:x ->
Click to expand...

you know whats crazy, i had the same HW tonight 😕
Click to expand...

hmmm lots of people here in prealgebra..
 
F(x) stands for a "function of x"

I.e y=mx , where y depends on what x is. X is the independant variable, and y is the dependant variable. Basically, whatever you get for x, determiens what y will be. That said, F(X) defines x as the independant variable.


For example, if I choose to plug in 5 or x, which is the same as saying x=5, then the function will start with F(5). Of course you must plug in this number to find out what it means. Think of it as a machine, or more speficially a function machine. You put something in, it processes it, and outputs something.

Assuming I use the equation f(x) = x+5 , that says that my independant variable will be modified by adding five to give me the resultant dependant variable. If x0, that will tell me what my y value is when x=o, or my y-intercept.

 
Originally posted by: OverVolt
wow... they are insanely easy. Public or private school?

Sleeping in class? 🙂
Click to expand...

Speak for yourself. It's the horrific language they use to describe these things that makes me freak out. When you say, "where y depends on what x is. X is the independant variable, and y is the dependant variable". First words out of my mouth are, "WTF! SPEAK ENGLISH!"

Goosman thanks for the laymen's interpretation of that. It cleared it up like crystal for me. Why can't mathmatics teachers learn to speak laymen or something? At least something understandable on a basic sense?
 
You must log in or register to reply here.

TRENDING THREADS

Back
Top