f(x)={
−1
x+2


for −4 1
1


for 1 1
1




Click and drag to make a line. Click the line to delete it.
Click on an endpoint of a line to change it.

fx 1 x2 for 4 1 1 for 1 1 1 Click and drag to make a line Click the line to delete it Click on an endpoint of a line to change it class=