Hello!! I Need HElp ASAP PLEAASSEE The line of symmetry of the parabola whose equation is y = ax2 - 4x + 3 is x = -2. What is the value of "a"? -2 - 1/2 -1
Mathematics · Middle School · Tue Nov 03 2020
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Wall we know that The quadratic equation in standard form is
y = ax^2+bx+c , where a,b,c are real number and the axis of the symmetry is given by x=-b/(2a)
Given equation by the question
y = ax2 - 4x + 3
Where x= -2 , b= -4 ,the axis of the symmetry is given by x=-4/(2a)
At x=-2 so ,-2=-4/(2a)
-4a=-4
a=-1 answer.