Lub luag haujlwm ntawm cov lus qhia linear yog txhawb nqa thiab coj cov khoom txav mus los, rov ua dua qhov kev txav mus los linear raws li qhov kev taw qhia. Raws li cov yam ntxwv sib txhuam, cov lus qhia linear tuaj yeem muab faib ua cov lus qhia sib txhuam swb, cov lus qhia sib txhuam dov, cov lus qhia sib txhuam elastic, cov lus qhia sib txhuam kua thiab lwm yam.