Converting from vertex form to standard form
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Step-by-step explanation:

To convert from vertex form to standard form, we can simply expand.

So, we have:

Expand the square:

Distribute:

Simplify:

true

step-by-step explanation:

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.