ineedhelp2285
21.07.2019 •
Mathematics
The equation of a parabola is given. y=−16x2+7x−80 what is the equation of the directrix of the parabola?
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Ответ:
y=−16x²+7x−80
see the answer in the attached figure
Ответ:
60/4=15
15/2.5=6
Then you check by doing 2.5 times 4 times 6 = 60