How do you graph, identify the domain, range, and asymptotes for y=1/2cscx-pi-1?

1 Answer
Jul 28, 2018

Range: y notin ( _ ( pi + 3/2), - ( pi + 1/2 )
Domain: Asymptotic x ne k pi, k = 0, +-1,+-2, +-3, ...

Explanation:

csc values notin ( - 1, 1 ). So,

y = 1/2 csc x - ( pi + 1 )

notin ( - 1/2 - ( pi + 1 ), 1/2 - (pi + 1 ) )

= ( - ( pi + 3/2 ), - ( pi + 1/2 ) )

Domain: Asymptotic x ne k pi, k = 0, +-1,+-2, +-3, ...,

given by zeros of sin x.

See graph, depicting these aspects.
graph{(2(y+pi+1)sin x-1)(y+pi+1.5)(y+pi+.5)(x^2-(pi)^2)=0[-20 20 -15 5]}