Which are true of the function f(x) = 49? Select three options.

The domain is the set of all real numbers.
The range is the set of all real numbers.
The domain is x > 0.
The range is y > 0.
As x increases by 1, each y-value is one-seventh of the previous y-value.

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2

a

step-by-step explanation:

question 1: step-by-step explanation:

1/4 of 84 = 84÷4= 21