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

Multiple Choice

Use technology (such as spreadsheet web site utilities, or a graphing calculator) to evaluate the function for $x = 4.2$ .
$f ( x ) = 0.8 x ^ { 2 } - 7 x + 4$

A) -19.288
B) -11.288
C) 47.512
D) -18.68
E) 39.512