Regression Analysis Was Applied Between Sales (In $10,000) and Advertising

Multiple Choice

Regression analysis was applied between sales (in $10,000) and advertising (in $100) and the following regression function was obtained. ​ = 50 + 8x
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Based on the above estimated regression line, if advertising is $1000, then the point estimate for sales (in dollars) is

A) $8050.
B) $130.
C) $130,000.
D) $1,300,000.