4-3

This past week in advanced math Mrs. Robinson was out for two days so we were given some worksheets to work on. Looking back to the week before last we learned some more of chapter four. Let’s review section 4-3 which deals with symmetry. There are a few rule you need to know:
Check to see if:
X - axis – 1) Plug in (-y)
2) Simplify and solve for y
3) If equations are equal then it has symmetry about x.

Y – axis – 1) Plug in (-x)
2) “ “
3) “ “ y – axis

Origin – 1) Plug in (-x) and (-y)
2) “ “
3) “ “ origin

Y = X – 1) Switch x and y
2) Solve for y
3) “ “ y = x

To graph these types of equations you will do 1 of 3 things:

A) Sketch – f(x) Reflect the x-axis
B) Sketch – f(-x) Reflect the y-axis
C) Sketch - |f(x)| Flip above the axis