How do you find the P value and the focus of an equation for a graph of a parabola that doesn't point out the focus??

Question

freckles · Answer

what does it mean when you say doesn't point out the focus?

anonymous · Answer

can I send you a picture of my problem, it would help explain the situation

freckles · Answer

ok

anonymous · Answer

attachment

freckles · Answer

which question are you talking about?
the graph questions?

freckles · Answer

number 17?

freckles · Answer

the focus has the same distance from the vertex as the directrix has from the vertex

anonymous · Answer

yes, so the coordinates for the focus for number 17 would be (-3,3)??

freckles · Answer

also the vertex is a little hard for me to read
I want to say  the vertex is (-3,0)... and it looks like you agree with that the directrix is y=-3
so the distance from the directrix to the vertex is 3
so yeah the focus would then be (-3,3)

anonymous · Answer

awesome! how about number 18, would the focus be at (-5,7)?

freckles · Answer

where did you 7

anonymous · Answer

oops sorry 6 I mean

freckles · Answer

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