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A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
A day full of math games & activities. Find one near you.
Identify the vertex for the graph of y = -2x2 -12x
(-3, 18), (-3, 55), (3, -53), (3, -47)
Solution:
Given y = -2x2 - 12x
Comparing the general equation of the parabola with the given equation, we get
a = -2 , b = -12 and c = 0
The vertex of a parabola is given by (h, k)
h = -b/2a
k = f(h)
h = 12/2(-2) = -3
k = f(-3) = -2(-3)2 -12(-3)
= 36-18 = 18
This is the vertex is (-3, 18)
Identify the vertex for the graph of y = -2x2 -12x
(-3, 18), (-3, 55), (3, -53), (3, -47)
Summary:
The vertex for the graph of y = -2x2 -12x is (-3, 18).
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