## Detailed description

- f(x) = (x + 2) squared (x − 1), graph of cubic function, x-intercept at (−2,0) and (1,0) and y-intercept at (0,−4).
- f(x) = (x + 2) cubed (x − 1), graph of quartic function, local maximum at (−2,0), local minimum at (1 over 4, 2187 over 256), x-intercept at (−2,0) and (1,0), y-intercept at (0,−8).
- f(x) = (x + 2) power 4(x − 1), local maximum at (−2,0), local minimum at (2 over 5, 62208 over 3125), x-intercept at (−2,0) and (1,0), y-intercept at (0,−16).