I don't know what kind of function this is but her goes...............
f(x)=x cubed -x+6 find the value of
f(3)
I don't know how to put the little 3 above the x
Your help is greatly appreciated:)
Thank you have a wonderful weekend:)
2007-03-30 17:38:03 · 13 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
f(3) just means that you let x = 3 and substitute into your equation in place of x.
f(3) = (3)^3 - (3) + 6 = 27 - 3 + 6 = 24 + 6 = 30
Good luck!
2007-03-30 17:41:55 · answer #1 · answered by birdwoman1 4 · 0⤊ 0⤋
Here goes. First, use the carat to show the power. Your equation then becomes
f(x) = x^3 -x + 6 Cool!
The notation f(3) means that you are to supply the numerical value of the function when x= 3.
So toss 3 in for x and you get 27 -3+6 or 30.
2007-03-30 17:43:06 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋
All they are asking you to do is substitute 3 for x and evaluate the expression.
So f(3) = 3^3 - 3 + 6
= 27 - 3 + 6
= 30
2007-03-30 17:42:38 · answer #3 · answered by Phaedrus 3 · 0⤊ 0⤋
This is really simple. When you have f()...anything that is inside the () brackets gets put into the equation where ever you see an X.
Therefore 3^3 - 3 + 6.
27 - 3+6 = 30
2007-03-30 17:43:53 · answer #4 · answered by huckleberry 5 · 0⤊ 0⤋
all you have to do is substitute 3 in for x
so your equation becomes y = 3^3 - 3 + 6
y = 27 - 3 + 6
y = 30 or f(3) = 30
2007-03-30 17:45:04 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Let us say that the statement says to find out on your own that f(3) is in abbreviated form for the topic that x=3
3^3-3+6=27-3+6=30.
2007-03-30 18:32:21 · answer #6 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
So, f(3) just means you put 3 in where ever x is, so the new equation would be 3^3-3+6.
2007-03-30 17:44:55 · answer #7 · answered by Kirstin 3 · 0⤊ 0⤋
you can put the x above the three by going x^3. find the value of f(3) means what does the equation equal when x=3. you can find it by sibstituting in 3 where there is an x and then solve.
2007-03-30 17:42:38 · answer #8 · answered by dancemusicalsdance 2 · 0⤊ 0⤋
f(x)=x cubed -x+6 find the value of
f(3) = x³ - x + 6
f(3) = 3³ - 3 + 6
f(3) = 27 - 3 + 6
f(3) = 30
Answer: (30, 3)
>:<
2007-03-30 17:46:16 · answer #9 · answered by aeiou 7 · 0⤊ 0⤋
at first I propose making the X's dots and making a and C as X and Y that could be a lot much less perplexing to comprehend for me, yet in any different case purely make it a fill in the sparkling issue 3 x (4+2) have her do this then that is going to be resembling what she did in till now grades 18 = (3 x _) + (3 x _)
2016-10-01 23:34:33 · answer #10 · answered by heusel 4 · 0⤊ 0⤋