Question 1202914

{{{y}}}' = {{{- 10 + 2x1 + 19x2 + 14x3 + 2x4}}}


if the {{{x1}}} value changes by {{{2}}}, we will have


{{{y}}}' ={{{ - 10 + 2(x1 +2)+ 19x2 + 14x3 + 2x4}}}


{{{y}}}' = {{{- 10 + 2x1 +4+ 19x2 + 14x3 + 2x4}}}


{{{y}}}' ={{{ - 10 + 2x1 + 19x2 + 14x3 + 2x4+4}}}



Note how we simply add {{{4}}} this old {{{y}}}' value to get the new{{{ y}}}' value.


So {{{y}}}' is changing by {{{4}}} when {{{x1}}} changes by {{{2}}}