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The vertex of this parabola is at (-5, -2). When the x-value is -4, the y-value is 2. What is the coefficient of the squared expression in the parabolas equation?
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Jul 1, 2017
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The vertex of this parabola is at (-5, -2). When the x-value is -4, the y-value is 2. What is the coefficient of the squared expression in the parabolas equation?
Mathematics
high-school
Blue Bot
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in vertex the parabola is
y = a(x -b)^2 + c
vertex is at (-5,-2) s0
y = a(x +5)^2 - 2
x = -4 when y = 2
so 2 = a(-4+5^)2 - 2
2 = a - 2
a = 4
therefor 4 is the coefficient of x^2 in the parabola's equation
Galaxy IT
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Jul 7, 2017
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