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

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 \(( 0 , \infty )\)

---

Definitions:

SPD Device

Surge Protection Device, a device designed to protect electrical equipment from voltage spikes by blocking or shorting to ground undesired voltages.

TPM Module

Trusted Platform Module, a specialized chip on an endpoint device that stores RSA encryption keys specific to the host system for hardware authentication.

Voltage Levels

The specific magnitudes of electric potential energy per unit charge at a point in an electric field, which dictate the flow of electrical current.

Maximum Memory

The largest amount of memory (RAM) that a computer system or device can support or utilize effectively.