Find the length of line segment x

Geometry answer picture question pls . reason and statements

Use the function f(x) is graphed below. the graph of the function to find, f(6). -2 -1 1 2

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 33 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30 ∘c on monday, but decreased at a constant rate in the next 33 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.