How do you evaluate functions?

Question

How do you evaluate functions?

1 Answer

Related questions

How do you determine the $(x, y)$ $(x,y)$ point given $f (x) = y$ $f(x)=y$ ?
How do you write an equation for a line with m=3.5 and $f (- 2) = 1$ $f(-2)=1$ ?
What are the two points if you are given $f (- 1) = 2$ $f(-1)=2$ and $f (0) = - 6$ $f(0)=-6$ ?
How do you write an equation for a line given $f (- 1) = 1$ $f(-1)=1$ and $f (1) = - 1$ $f(1)=-1$ ?
How do you write an equation for a line given $m = - 7$ $m=-7$ and $f (2) = - 1$ $f(2)=-1$ ?
How do you determine the slope given $f (- 4) = 2$ $f(-4)=2$ and $f (0) = 3$ $f(0)=3$ ?
How do you write an equation of the line with slope -3 and y-intercept (0,-5)?
How do you find the slope-intercept form of the equation of the line that passes through (-2,...
How do you write the slope intercept form of the equation of the line through the given point...
Given the equation y - 3 =1/2 (x=6) in point-slope form, how do you identify the equation of the...

Impact of this question

6771 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2015-03-23T17:12:27

Assuming your function is expressed using $x$ $x$ as a variable, evaluation of the function involves replacing each occurrence of $x$ $x$ with some per-specified value.

That is evaluation of a function is always "at some point#.

For example if your function is
$f (x) = 3 x^{2} - x + 4$ $f(x) = 3x^2 -x +4$
and you are asked to evaluate this function at $x = 2$ $x=2$

$f (2) = 3 (2^{2}) - 2 + 4 = 14$ $f(2) = 3(2^2) -2 + 4 = 14$

(Since this question was asked under "Functions in Slope-Intercept Form, your function might look more like:
$y = 5 x + 7$ $y = 5x + 7$
and you might be asked to "evaluate $y$ $y$ at $2$ $2$ ", but the same idea applies:
$y = 5 (2) + 7 = 17$ $y = 5(2) + 7 = 17$ )

Science

Math

Humanities

... and beyond

How do you evaluate functions?

1 Answer

Related questions

Impact of this question