4-3

sooo my computer has a virus and wont let mee open up anything other than the internet, so I have no idea how many words this is going to be.

Pretty much everything except for 4-2 that we have learned this week has to do with drawing graphs, and since I already did a blog on that and I obviously can't draw any graphs on here, I'll just explain how to work some problems from section 4-3. This section was all about symmetry. Some problems gave you a graph and you had to either sketch:
-f(x), reflect the x axis
1. plug in (-y)
2. simplify (solve for y)
3. if eqations are equal then it has symmetry about x.
* If it gives you a graph and tells you to sketch -f(x), you take the graph and draw everything on the x axis on the opposite side.
f(-x), reflect the y axis
1. plug in (-x)
2. simplify (solve for x)
3. If equations are equal then it has ymmetry on the y axis.
* If it tells you to sketch f(-x) then you take everything on one side of the y axis and draw it to the other.
|f(x)|, flip above axis
1. plug in (-x) & (-y)
2. simplify
* If it tells you to sketch |f(x)| then everything on the lower half of the axis, you draw onto the top half.

Sorry this was confusing, but it is hard to explain it without having some graphs as examples.