Evaluate the piecewise defined function at the indicated values. f(x) =

x2 if x < 0

x + 7 if x ≥ 0

f(−2) =

f(−1) =

f(0) =

f(1) =

f(2) =

Well in order to lose a pound you would have to burn 1,500 calories. the more calories you burn the more weight you lose. in order to lose 2 pounds you would have to run 4 hours and 28 minutes.