Mr. Driscoll has 9 reports to grade there are 6 pages for each report he graded 12 pages how many pages does he still have to gr
2 answers:
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Answer:
D.
Step-by-step explanation:
1) according to the definition of parabola d(focus)=f(directrix),
2) then
3) after evoluation the equation:
(y+4)²=-4x+8 or (y+4)²= -4(x-2);
4) correct answer is D.