The diagram is not given. I will however write out each polynomial, so that you can select whichever corresponds to your question.
Step-by-step explanation:
(2x + 8)(4x + 8)
= 8x² + 16x + 24x + 64
= 8x² + 40x + 64
= 8(x² + 5x + 8)
(x + 2)(x+4)
= x² + 4x + 2x + 8
= x² + 6x + 8
(x + 1)(x+8)
= x² + 8x + x + 8
= x² + 9x + 8
* (*+ 4x)(2x + 3) NOT CLEAR
Answer:
Down
As the lines of the parabola point down, the parabola opens down.
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