Answer:
Domian x is set of all real numbers (-∞, ∞)
range is
U [2,∞)
Explanation:
A. Graph the piece-defined function
f(x)={x+4,x≥-2
-6, x<-2
Domain is the set of x values,
![x\geq -2, x<-2](https://img.qammunity.org/2020/formulas/mathematics/high-school/vmubmqzpttqkab56durrakdlxt7v3437b6.png)
Domian x is set of all real numbers
For range we check the y values
![y=x+4](https://img.qammunity.org/2020/formulas/mathematics/high-school/7cb5benfco90m3i4p6llqzu8lrf96o7qdu.png)
Plug in
for x
![y=-2+4=2](https://img.qammunity.org/2020/formulas/mathematics/high-school/qxa1boq5mcgibjge1v64gguui8ifhu3lar.png)
![y=2](https://img.qammunity.org/2020/formulas/mathematics/middle-school/iixn10ipws98pi08daetfkonu7i7z3hmrl.png)
so range is y values greater than 2
For second function, y value is only -6
So range is
U [2,∞)