Question

HELP

What is the range of f(x)=−3^x−5 ?



the set of real numbers greater than 0
the set of real numbers less than 0
the set of real numbers less than −5
the set of real numbers greater than −5

Answer 1

The set of Real number less than -5.

Explanation:

Given:

`f(x) = -3^(x)-5`

For finding the range we will put the value for
`x=-1,0,1,2,.....`

∴
`f(-1) =-3^(-1)-5\\=(-1)/(3) -5\\=(-16)/(3)\\=-5.333`

∴
`f(0) =-3^(0)-5\\=-1 -5\\=-6`

∴
`f(1) =-3^(1)-5\\=-3 -5\\=-8`

and so on we have all the set of Real number less than -5.