9. When -0

Extracted text: 9. When -0 < e="">< -1,="" the="" demand="" is="" said="" to="" be="" elastic.="" when="" –1=""><><0, the="" demand="" is="" said="" to="" be="" inelastic.="" when="" e="-00," the="" demand="" is="" perfectly="" elastic="" and="" when="" e="0" the="" demand="" is="" perfectly="" inelastic.="" essential="" goods="" such="" as="" basic="" foods="" tend="" to="" have="" inelastic="" demands;="" discretionary="" items,="" such="" as="" electronic="" equipment="" have="" elastic="" demands.="" explain="" the="" meaning="" of="" these="" terms="" in="" this="">