Find $($a$)$

ModifyingBelow lim With x right arrow $400$ Superscript pluslimx$400+$Start floor x End floorx

and $($b$)$

ModifyingBelow lim With x right arrow $400$ Superscript minuslimx$400$Start floor x End floorx$$;

then use the limit definitions to verify your findings.

$($c$)$ Based on your conclusions in parts$($a$)$ and$($b$),$ can you say anything about

font size increased by $1$ ModifyingBelow lim With x right arrow $400$limx$400$