1. Dada la función h : (−∞, −1] −→ [−1, +∞)
x 7−→ |2x^2 + x − 1| + x

(a) Determinar si la función es invertible, de serlo obtener su inversa.
(b) Determinar h^−1 ◦ h.​

The daily production of a company is modeled by the function p = -w^2 + 75w - 1200. the daily production, p, is dependent on the number of workers (w) present. if the break-even point is when p=0, what are the least and greatest number of workers the company must have present each day in order to break even? 50 points! will give brainliest!