Which of the following is an example of a function with a domain (-∞,+∞) and a range (-∞,+∞)?
A. f(x) = x^1/3 - 5
B. f(x) = x^1/4 - 5
C. f(x) = x^1/6 - 5
D. f(x) = x^1/8 - 5

the correct answer is 1: 2

step-by-step explanation:

hope this your welcome : )

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is