Respuesta :
Answer:
Step-by-step explanation:
hello :
f(x) = -2x²+3
in : [-1, 2] f'(x) = - 4x
f'(x) = 0 means : -4x=0 so : x=0
f(0) = -2(0)²+3 = 3 (Maximum:) because : a= -2 and a<0
in : [-1, 0] f is crasing
in : [-1, 2] f is decrasing
Answer:
Step-by-step explanation:
hello :
f(x) = -2x²+3
in : [-1, 2] f'(x) = - 4x
f'(x) = 0 means : -4x=0 so : x=0
f(0) = -2(0)²+3 = 3 (Maximum:) because : a= -2 and a<0
in : [-1, 0] f is crasing
in : [-1, 2] f is decrasing