#1

Could someone please explain this to me? (darkstar )

It's Algebra 2 and I fell asleep during my lesson, so I really didn't catch much of it.

But if someone could sum it up or explain- that'd be pretty sweet

Thanks guys

It's Algebra 2 and I fell asleep during my lesson, so I really didn't catch much of it.

But if someone could sum it up or explain- that'd be pretty sweet

Thanks guys

*Last edited by TDKshorty at Nov 14, 2007,*

#2

What would you like to know?

#3

um...end behavior of what? I'm in Calc 108 at college. What your asking kind of makes no sense. End behavior of a line as X approaches infinity? I need more info.

#4

The assignment is as follows

"Describe the end behavior of the graph of the polynomial function by completing these statements:

f(x)-->

"Describe the end behavior of the graph of the polynomial function by completing these statements:

f(x)-->

__?__as X--> - (infinity symbol) and f(x) -->__?__as X--> + (infinity symbol)
#5

So let's say you have a function f(x) = x^3 - 5.

As you go along the x-axis, in the positive direction, when you plug in a value of x into f(x), f(x) is going to be a giant number, and it keeps getting bigger and bigger. In math, we say that "as x approaches infinity, f(x) approaches infinity."

However, when you go along the x-axis in the negative direction, when you plug in a value, f(x) is going to get smaller and smaller (i.e, more negative). So as x gets smaller and smaller, f(x) gets smaller and smaller. We say that "as x approaches negative infinity, f(x) approaches infinity."

Anything else you would like to know?

As you go along the x-axis, in the positive direction, when you plug in a value of x into f(x), f(x) is going to be a giant number, and it keeps getting bigger and bigger. In math, we say that "as x approaches infinity, f(x) approaches infinity."

However, when you go along the x-axis in the negative direction, when you plug in a value, f(x) is going to get smaller and smaller (i.e, more negative). So as x gets smaller and smaller, f(x) gets smaller and smaller. We say that "as x approaches negative infinity, f(x) approaches infinity."

Anything else you would like to know?

#6

So let's say you have a function f(x) = x^3 - 5.

As you go along the x-axis, in the positive direction, when you plug in a value of x into f(x), f(x) is going to be a giant number, and it keeps getting bigger and bigger. In math, we say that "as x approaches infinity, f(x) approaches infinity."

However, when you go along the x-axis in the negative direction, when you plug in a value, f(x) is going to get smaller and smaller (i.e, more negative). So as x gets smaller and smaller, f(x) gets smaller and smaller. We say that "as x approaches negative infinity, f(x) approaches infinity."

Anything else you would like to know?

Prospectively I understand what you're saying but I can't think that "hey this is the problem and I know how to get the answer"

so my first problem is f(x)= -5X^4

so I know that if I was going up the X axis I would be going down etc etc

but do I graph or just say "as blah blah ..blah blah blah infinity"

like it goes up and gets closer to infinity and it goes down and stuff...gets smaller