Question

Função f(x)=(m-2)x²-2x+5

Answer 1

(m-2)x²-2x+6 = 0

Δ = b²-4ac

(-2)²-4·(m-2)·(6) ≥ 0

4-24·(m-2) ≥ 0

4-24m+48 ≥ 0

-24m ≥ -52 (-1)

24m ≤ 52

m ≤ 52/24

m ≤ 13/6