383÷386397398&393333
Answer:
- 3.25
Step-by-step explanation:
x² - 3x - 1 = (x² - 3x + (3/2)²) - (9/4 + 1)
= (x - 3/2)² - 13/4
parabola: y = (x-h)² + k (h,k): vertex
vertex: (3/2 , -13/4) or (1.5 , - 3.25)
Minimum value of y : - 3.25
