how to write this table as an equation

[illuminati58]

x -2 -1 0 1 2
f(x) -2 2 6 10 14

[illuminati58]

wouls this be right?

f(-2) = -2, f(-1) = 2, f(0) = 6, f(1) = 10, f(2) = 14

[stapel_eliz]

That kind of depends. What were the instructions? What are you supposed to do with the table of values?

Thank you!

[illuminati58]

look at the table and Write out an equation for f(x)

[stapel_eliz]

In that case, you don't want to relist the values (as you did), but instead find a formula relating the inputs and outputs. You can try to find the next number in the sequence, since you are counting by 1s for the x-values. Or you could do a regression in your calculator. Or you could plot the points, and see what you can come up with.

What method(s) are you supposed to use? How far have you gotten in applying what they've given you?

[illuminati58]

The question is: Take a look at the table below and write out an equation for f(x).

when your talking about methods; are you refering to one of these three to use, if so how?

numerically: by means of a table
algebraically: by means of a formula
graphically: by means of a graph

[stapel_eliz]

"Numerically" would be looking at the numbers, such as is suggested in the lesson in the link (provided earlier), or doing a regression. "Algebraically" would be using some of the formulas and methods in the lesson link. "Graphically" would be the graphing I mentioned earlier.