given the following exponential function, identify whether the change represents growth or decay, and…

given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease. \n\n( y = 30(1.003)^x )
Answer
Explanation:
Step1: Recall exponential function form
The general form of an exponential function is ( y = a(b)^x ), where ( a ) is the initial amount, and ( b ) is the base. If ( b>1 ), it's growth; if ( 0 < b < 1 ), it's decay. The growth/decay rate ( r ) is related to ( b ) by ( b=1 + r ) (for growth) or ( b = 1 - r ) (for decay).
Step2: Analyze the given function
For the function ( y = 30(1.003)^x ), the base ( b = 1.003 ). Since ( 1.003>1 ), this represents growth.
Step3: Calculate the growth rate
Using the formula ( b = 1 + r ), we substitute ( b = 1.003 ): ( 1.003=1 + r ) Subtract 1 from both sides: ( r=1.003 - 1=0.003 ) To convert this to a percentage, multiply by 100: ( r = 0.003\times100 = 0.3% )
Answer:
The change represents growth with a percentage rate of increase of ( 0.3% ).