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kvv77 [185]
3 years ago
5

What is the first step when rewriting y = 3x2 9x – 18 in the form y = a(x – h)2 k?

Mathematics
2 answers:
mestny [16]3 years ago
7 0

Answer:

i think its c

Step-by-step explanation:

stiks02 [169]3 years ago
3 0
A quadratic equation has the general form of: <span>

y=ax² + bx + c

It can be converted to the vertex form in order to determine the vertex of the parabola. It has the standard form of:

y = a(x+h)² - k

This can be done by completing a square. The steps are as follows:

</span><span>y = 3x2 + 9x – 18
</span>y = 3(x2 <span>+ 3x) – 18
</span>y + 27/4= 3(x2 <span>+ 3x+ 9/4) – 18 
</span>y = 3(x2 + 3/2)^2 – 99<span>/4
</span>
Therefore, the first step is to group terms with the variable x and factoring out the coefficient of x^2.
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2 years ago
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