BANA 2372 Exam Questions with Correct Solutions New Version (Already Passed)

BANA 2372 Exam Questions with Correct Solutions New Version (Already Passed) Percentage change - Answers Current value- Reference value / reffereance value x 100 % - Answers Multiply by 100 Decimal - Answers Divide by 100 Exponents - Answers Formulas: 1)BxBy=Bx+By 2)Bx/By=Bx-By 3)(Bx)y=Bx*y 4)Bo=1 5) B-1=1/b n= Any number but 1 Base - Answers A num Sketching a graph - Answers y=X'2-2 y=(-2)'2-2=2 X -2 1 0 1 2 3 Y +2-1-2 -1 2 7 To find the x value make a chart and plugin one of the numbers on it for x =y X=Diagonal Y=Vertical Linear functions - Answers Over equal intervals, the y-values increase by adding or subtracting the same number each time. *Note that the slope in the example would be 3/1= 3 Slope intercept form - Answers y=mx+b Slope - Answers change in y/change in x Rise/Run Y2-Y1/X2-X1 Equation of a line - Answers Pass through two points X 1 2 Y 5 7 X1=1 X2=2 Y1=5 Y2=7 7-5/2-1= 2 = slope Y'2=MX'2+B 7=2(2)+b B=3 Revenue Function - Answers R(x)=P(x) Cost Function - Answers C(x)= mx+b Profit Function - Answers R(x)-C(x) Example - Answers R=30 P=10 C=500 Profit Function Quadratic Functions - Answers y= F(x)Ax'2+Bx+c Present Value - Answers PV=FV/(1+r't) Future Value - Answers FV=PV(1+R)'t Logarithm - Answers multiples of ten You can't find the log of negative numbers