) A 145 mg dose of quinine is given to a patient to prevent malaria. Quinine leaves the body at a rate of 6% per hour. Construct an exponential model to repres

Question

Help please!

Answer 1

Hi Krystal!

 

The basic form for an exponential decay formula is y=A(1 - r)^t. ( The t is an exponent!)

 

y = changing amount

A = the initial amount

r = rate of decay written as a decimal (ie - move the decimal point left two places)

t = number of time units.  In this case, it's hours, since the rate was given per hour.

 

You just sub the values in where they go.

 

A = 145 since that's how much quinine you started with

r = .06, since you moved the decimal two places to the left.

 

y and t are your unknowns,since you are creating an exponential model.  Try subbing in, and then check to see if you got it!

 

 

 

 

 

 

 

 

 

 

You should have y = 145(1-.06)^t

 

 

Message me if you have questions!

 

Mrs. C