ADDITION OF LINEAR
FUNCTIONS
Here is the algebraic
progression of adding these linear functions.
As we found out from
our exploration of the general functions on hte first page fo
our exploration, we are left with a new linear equation.
Here is what it looks
like.
So, when adding linear
functions, we will always get a linear function whose slope is
equivilant to the sum of the slope of f(x) and g(x).
The y-intercept is
found the same way.
If you look carefully
at the graph, you can see that the new linear equation has a slope
of 7 and crosses the y-axis at 5.

Return to
Main Investigation