$\text { Determine the open intervals on which the graph of } f ( x ) = 3 x ^ { 2 } + 7 x - 3 \text { is concave }$

question 108

Multiple Choice

$\text { Determine the open intervals on which the graph of } f ( x ) = 3 x ^ { 2 } + 7 x - 3 \text { is concave }$ downward or concave upward.

• A) concave downward on \(( - \infty , \infty )\)
• B) concave upward on \(( - \infty , 0 )\); concave downward on \(( 0 , \infty )\)
• C) concave upward on \(( - \infty , 1 )\); concave downward on \(( 1 , \infty )\)
• D) concave upward on \(( - \infty , \infty )\)
• E) concave downward on \(( - \infty , 0 )\); concave upward on \(( 0 , \infty )\)

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