Answer: a=-1
Explanation:
Answer:
a = -1.
y = ax^2 - 4x + 3
Convert to vertex form:-
= a(x^2 - 4/a) + 3
= a [ (x - 2/a)^2 - 4/a^2 ] + 3
From this we see that the line of symmetry is y = 2/a so
2/a = -2
-2a = 2
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