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Determine the axis of symmetry and the vertex of the given function. y = 2x2 − 12x + 21
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Determine the axis of symmetry and the vertex of the given function.
y = 2x2 − 12x + 21

User Jezmck
by
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1 Answer

4 votes
-b/2a = -(-12)/2*2
12/4 or 3. X=3
Now put 3 back into the equation for x

2(3)^2 -12(3) +21
18 -36 +21. = 3. Y=3

(3,3)
User Janaya
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