The graph of the piecewise function f(x) is shown. What is the range of f(x)?

Can someone tell me if this is perpendicular? !

The height of a birch tree, f(x), in inches, after x months is shown in the graph below. how much does the birch tree grow per month, and what will be the height of the birch tree after 10 months? a. the birch tree grows 1 inch per month. the height of the birch tree will be 16 inches after 10 months. b. the birch tree grows 2 inches per month. the height of the birch tree will be 26 inches after 10 months. c. the birch tree grows 3 inches per month. the height of the birch tree will be 36 inches after 10 months. d. the birch tree grows 2 inches per month. the height of the birch tree will be 24 inches after 10 months.

Anewly planted tree needs to b stacked witg three wires.each wire is attached to the trunk 3ft abouve the ground and anchored to the ground 4ft fromthe base of the three