To write a function to describe the nature of graph four you have to break it down. Looking from left to right we see the first function is a linear function. The secind is a square root function. the third is the quadratic function. Then you have to find the domain for each; (from left to right) negative infinity to zero, zero to four, and four to positive infinity. So the function looks like this. (See below)
Kristi
My name is Kristi and this is what you need to know about me and math.