For a parabola,

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The axis of symettry is always.

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Use this to answer your question.

Look at the coefficeint with the square.d) Doesf(x)have an absolute minimum OR an absolute maximum? What is its minimum or maximum value?

It is positive.

So it is a parabola opening up, hence an absolute minimum.

Since it is a parabola opening up everything to the vertex is the decreasing interval and everything after is an increasing interval. Use part (c) to find the vertex.e) Give the interval on whichf(x)is decreasing.

Answer: Not sure how to get this!

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I question. Do you call yourself "Redspades" because you use the Black Bicycle Deck?