Asked by cheyanne marie
Find the vertex and axis of symmetry of y = -2x^2 + 4x + 1. Show all of your work and justify your reasoning.
Note: The ^ symbol means to the power.
Note: The ^ symbol means to the power.
Answers
Answered by
Henry
Y = -2x^2 + 4x + 1.
Xv = h = -b/2a = -4 / -4 = 1.
In the given Eq, substitute 1 for x:
Yv = k = -2*1^2 + 4*1 +1 = 3.
V(h,k) = (1,3).
Axis: X = h = 1.
Xv = h = -b/2a = -4 / -4 = 1.
In the given Eq, substitute 1 for x:
Yv = k = -2*1^2 + 4*1 +1 = 3.
V(h,k) = (1,3).
Axis: X = h = 1.
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