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ASHA 777 [7]
3 years ago
9

What is the equation of the axis of symmetry of the graph of y + 3x – 6 = –3(x – 2)2 + 4?

Mathematics
2 answers:
son4ous [18]3 years ago
8 0
 <span>What is the equation of the axis of symmetry of the graph of y + 3x – 6 = –3(x – 2)2 + 4?


</span>A. x=3/2
ella [17]3 years ago
3 0
<h2>Answer:</h2>

Option: A is the correct answer.

              The axis of symmetry is:

                      A.    x=3/2      

<h2>Step-by-step explanation:</h2>

We are given a graph as:

y+3x-6=-3(x-2)^2+4

and

y=-3(x-2)^2+4+6-3x

and

y=-3[(x-2)^2+x]+10\\\\i.e.\\\\y=-3[x^2+4-4x+x]+10\\\\i.e.\\\\y=-3[x^2-3x+4]+10

This equation could also be written in the form:

y=-3[x^2-3x+4-\dfrac{9}{4}+\dfrac{9}{4}]+10\\\\i.e.\\\\y=-3[(x-\dfrac{3}{2})^2+4-\dfrac{9}{4}]+10\\\\i.e.\\\\y=-3[(x-\dfrac{3}{2})^2+\dfrac{7}{4}]+10\\\\i.e.\\\\y=-3(x-\dfrac{3}{2})^2-3\times \dfrac{7}{4}+10\\\\i.e.\\\\y=-3(x-\dfrac{3}{2})^2+\dfrac{19}{4}

Now, we know that for any general equation of the type:

y=a(x-h)^2+k

The axis of symmetry of the graph of the equation is:

x=h

Here we have:

h=\dfrac{3}{2}

            Hence, the answer is: Option: A

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