Use technology (such as spreadsheet web site utilities, or a graphing calculator) to evaluate the function for $x = 4.4$ . $r ( x ) = \frac { 2 x ^ { 2 } - 7 } { 2 x ^ { 2 } + 7 }$
Round the answer to four decimal places if necessary.

A)1
B) 1.4414
C) 15.8000
D) 0.6938
E) 0.4309

Question

Use technology (such as spreadsheet web site utilities, or a graphing calculator) to evaluate the function for $x = 4.4$ .  $r ( x ) = \frac { 2 x ^ { 2 } - 7 } { 2 x ^ { 2 } + 7 }$
Round the answer to four decimal places if necessary.

A)1
B) 1.4414
C) 15.8000
D) 0.6938
E) 0.4309

Quizplus · Accepted Answer

To evaluate $r(4.4)$, substitute $x = 4.4$ into the function: $r(4.4) = \frac{2(4.4)^2 - 7}{2(4.4)^2 + 7}$. Calculating this gives a value of approximately 0.6938 when rounded to four decimal places.

Use Technology (Such as Spreadsheet Web Site Utilities, or a Graphing