$\text { Find the open interval(s) on which } f ( x ) = - 2 x ^ { 2 } + 12 x + 8 \text { is increasing or decreasing. }$

question 57

Multiple Choice

$\text { Find the open interval(s) on which } f ( x ) = - 2 x ^ { 2 } + 12 x + 8 \text { is increasing or decreasing. }$

• A) increasing on \(( - \infty , 6 )\); decreasing on \(( 6 , \infty )\)
• B) increasing on \(( - \infty , 16 )\); decreasing on \(( 16 , \infty )\)
• C) increasing on \(( - \infty , 32 )\); decreasing on \(( 32 , \infty )\)
• D) increasing on \(( - \infty , 24 )\); decreasing on \(( 24 , \infty )\)
• E) increasing on \(( - \infty , 3 )\); decreasing on \(( 3 , \infty )\)

Analyze the impact of standard deviations on data distribution.

Differentiate between positive and negative z scores and their implications.

Apply inferential statistics principles to understand population parameters from sample data.

Understand the symmetry and asymptotic nature of the normal curve.

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