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.
Biodiesel Production The table shows the biodiesel
productions y (in thousands of barrels per day) for the United
States for 2007 through 2012. The variable t represents the time
in years, with t = 7 corresponding to 2007. (Source: U.S.
Energy Information Administration)
(a) Plot the data by hand and connect adjacent points with
a line segment. Use the slope of each line segment to
determine the year when biodiesel production increased
most rapidly
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