How do you evaluate the function #k(n) = 2n^2#, for k(3)?

1 Answer
Jul 23, 2015

You simply make #n# equal to 3.

Explanation:

You know that your function looks like this

#k(n) = 2n^2#

This means that, for any value of #n#, you need to square this value and multiply it by 2 to get the value of the function.

This means that #k(3)#, which simply means that you evaluate the function when #n=3#, will be equal to

#k(3) = 2 * 3""^2 = 2 * 9 = color(green)(18)#