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Exponential Function

Module 23: Exponential Functions

Basic x^n= x*x*x*x..........x (multiple x with itself n number of times) x^4=x*x*x*x
Negative Exponents x^-n=x*x*x*x..........x (first take the reciprocal, then multiple x with itself n number of times) x^-4=1/x*x*x*x
Multiplying with Exponents x^n x^m=x^n+m (when multiplying numbers with exponents add the exponents) x^4*x^7=x^4+7=x^11
Dividing with Exponents x^n/ x^m=x^n-m (when dividing numbers with exponents subtract the exponents) x^7/x^4=x^7-4=x^3
Powering with Exponents (x^n)^m=x^n*m ( when powering numbers with exponents multiply the exponents) (x^2)^3=x^2*3=x^6
Exponents as a Fraction x^1/n (when fractions are exponents take the n root of the number) x^1/2= square root of x
Exponential Growth y=A(1+r)^t A=Amount r=Rate t=Time A=500, r=.25, t=3 y=500(1+ .25)^3=976.5625
Exponential Decay y=A(1-r)^t A=Amount r=Rate t=Time A=400, r=.50, t=4 y=400(1- .50)^4=25
Exponents to the Power of Zero x^0=1 ( anything to the power of zero will always be 1) 4586^0=1
Fraction with Exponents (x/y)^n=(x^n)/(y^n) (take the numerator to the power of n and the denominator to the power of n) (x/y)^5=(x^5)/y^5
Solve (a^4)(b^6)(c^11)*(a^8)(b^10)(c^16) a^4 +8=a^12 b^6+10=b^16 c^11+16=c^27 (a^12)(b^16)(c^27)
Solve (x^10)^8 x^10*8=x^80
Solve 27^1/3=x 27^1/3 3*3*3=27 x=3
Created by: DHollis