The Following Table Shows the Number of Rectifiers, in Thousands $f ( x ) = a x ^ { 2 } + b x + c$

question 418

Multiple Choice

The following table shows the number of rectifiers, in thousands, produced by Allied Electronics in the three years considered. For a function of the form $f ( x ) = a x ^ { 2 } + b x + c$ that fits this data, what is the value of $b$ ?

• A) 11
• B) 12
• C) 10
• D) 9

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