evaluate the question
This question is asking you to put the number 3 wherever you see an x.
So, if we do that, we'll then have the equation f(3) = 3 + 4, which simplifies to f(3) = 7.
Send me a comment if you need any more help!
evaluate the question
This question is asking you to put the number 3 wherever you see an x.
So, if we do that, we'll then have the equation f(3) = 3 + 4, which simplifies to f(3) = 7.
Send me a comment if you need any more help!
f(x)=x+4
we need f(3)
so we just replace the value of x to 3 and replace in the original function of x or f(x)=x+4
f(3)=3+4
=7 thats your answer
x = 3
so 3 = 3 + 4
and 3 + 4 = 7
so the answer is 3 = 7
Let's start with some basic information.
f(x) means the function of x, just like with a slope equation or a y equation. If it makes it easier, you can think of f(x) to be the same as y. All it does is explain the relationship between f(x) or y to variable x.
So if f(x) = x+4, that means that for any value (x), f(x) is equal to x+4.
Now, the question asks, what if x was equal to 3?
This changes the original f(x)= x+4
to f(3)= 3+4
Then you just do the addition: 3+4= 7
Therefore: f(3)= 3+4, f(3)= 7