Sales Decay At the end of an advertising campaign,weekly sales of camcorders declined according to theequation y = 10,000(3-0.05x )dollars, where x is thenumber of weeks after the campaign ended.a. Determine the sales at the end of the ad campaign.b. Determine the sales 8 weeks after the end of thecampaign.c. How do we know, by inspecting the equation, thatthis function is decreasing?
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
Sales Decay At the end of an advertising campaign,
weekly sales of camcorders declined according to the
equation y = 10,000(3-0.05x )dollars, where x is the
number of weeks after the campaign ended.
a. Determine the sales at the end of the ad campaign.
b. Determine the sales 8 weeks after the end of the
campaign.
c. How do we know, by inspecting the equation, that
this function is decreasing?
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