Question

Which could be the entire interval over which the function, f(x), is positive?

a) (–∞, 1)
b) (–2, 1)
c) (–∞, 0)
d) (1, 4)

Answer 1

Answer:

OPTION B IS CORRECT.

Step-by-step explanation:

$f(x) \: is \: positive \: for \: values \: of \: x \: lying \: between \: ( - 2 \: \: \: \: \: 1) \\ \\ therefore \: \: answer \: is \: option \: (b).$