Write down the first even multiple of 9
2 answers:
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The axis of symmetry of a quadratic function 
is given by the equation 
, where h is the x-coordinate of the vertex and is equal to 
.
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2.
3.
The functions ranked from least to greatest based on their axis of symmetry: h(x), f(x), g(x).
1.
2.
3.
The functions ranked from least to greatest based on their axis of symmetry: h(x), f(x), g(x).
We are given :
Step 1: factor the part inside square root
The function given inside square root is of quadratic form.
So let us try to factorise it using AC method.
Here A*C = 4*25 = 100
so we have to find factors of 100 that add up to give -20.
the two factors are -10 and -10.
Rewriting the function :
=
=
=
Step 2:
Now we take square root of the factorised form
=
Answer : (2x-5)