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Find the vertex for the equation : y=3x²+18x+30 a.) (-3,3) b.) (-3,-51) c.) (3,111)

Find the vertex for the equation : y=3x²+18x+30 a.) (-3,3) b.) (-3,-51) c.) (3,111)
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4 votes
Find the vertex for the equation : y=3x²+18x+30

a.) (-3,3)
b.) (-3,-51)
c.) (3,111)

User Sagar Gangawane
by
9.0k points

1 Answer

2 votes
dy/dx=6x+18, dy/dx=0 when x=-3

y(-3)=27-54+30=3

(-3, 3)
User Sneaky Polar Bear
by
8.4k points
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