Consider the graph of the function given to the right What i

Consider the graph of the function given to the right. What is its domain? What is its range?

Solution

The curve runs horizontally from x= - 4 to x=3 ( x= - 4 is excluded) threfore Domain: (-4,3]

The curve runs vertically from y= -2 to y= 2( y=2 is excluded) and y=4 also. therefore Range : [-2,2) U {4}

Domain: (-4,3] and Range : [-2,2) U {4}