Assertion: parabola's focus | /r/HasProperty | directrix
Facets:
Source sentences:
text: Focus: [latex]\left(-2,-2\right)[/latex]; Directrix: [latex]y=8[/latex]; Endpoints of the latus rectum: [latex]\left(-12,-2\right)[/latex] and
text: When the focus is below, the directrix , then the parabola opens downwards.
text: Focus: ( 9 , − 1 ) ; Directrix: x = 7 ; Endpoints of the latus rectum: ( 9 , − 3 ) and ( 9 , 1 ) .