# finite Mathematics

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- True or false. The slope of a horizontal line is undefined.
- True or false. Suppose the slope of a straight line ;
*L*;is -3/4 and ;*P*;is a given point on ;*L*. If ;*Q*;is a point on ;*L*;lying 2 units to the right of ;*P*, then ;*Q*;is situated 3/2 units below ;*P*. - True or false. The ;
*y*-intercept of the straight line with equation ;*Ax ;*+ ;*By ;*+ ;*C ;*= 0 is –*C*/*B ;*(*B*;≠ ;0). - True or false. If a line ;
*L*_{1};has equation ;*y ;*= ;*mx*+ ;*b*, where ;*m ;*and ;*b ;*are constants with ;*m*;*≠ ;*0,then an equation of a line ;*L*_{2};perpendicular to ;*L*_{1};has the form, where ;*C*;is a constant. - True or false. Suppose an asset is being depreciated linearly. Then the rate of depreciation of the asset is given by the negative of the slope of the depreciation line.
- True or false. If ;
*R*;and ;*C*;are linear revenue and cost functions, respectively, and (*x*_{0}, ;*p*_{0}) is the breakeven point, then ;*P*(*x*) > ;*P*(*x*_{0}) if ;*x*;> ;*x*_{0}, where ;*P*;is the profit function. - True or false. The least-squares line must pass through at least one of the data points.

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