18. For the scatterplot on the right, determine which, if any, of these functions might be used as a model for the data. 3.5 3.4- 3.3- Q Quadratic: f(x) = ax#+ bx + c Polynomial, not quadratic 3.2 Sales (in millions Exponential: f(x) = apkk, k> 0 Exponential: f(x) = ae - M, k > 0 E 3. LA 3.0- Logarithmic: a + b In x Logistic: f(x) = 2.9- 1+be - kx 2.8- D Year Which of the functions above might be used as a model for the data? O A. Exponential: f(x) = ackx, k > 0 O B. Exponential: f(x) = ag -kx, k >0 O C. Quadratic: f(x) = ax"+ bx + c O D. Logarithmic: f(x) = = + b Inx a O E. Logistic: f(x) = - 1 +be - kx OF. Polynomial, not quadratic 19. For the scatterplot on the right, determine which, if any, of these functions might be used as a model for the data. Quadratic: f(x) = ax/ + bx + c Polynomial, not quadratic * of fruit flies (hundreds) Exponential: f(x) = ap kx, k>> 0 Exponential: f(x) = ae - kx, k>>0 a Logarithmic: f(x) = a + bInx Logistic: f(x) = - 1+be - kx 2345 Day Which of the functions above might be used as a model for the data? O A. Exponential: f(x) = ag -kx, k > 0 B. Quadratic: f(x) = ax + bx + c O C. Logistic: f(x) = 1+be - kx O D. Exponential: f(x) = ack, k>0 O E. Logarithmic: f(x) = a+ binx OF. Polynomial, not quadratic 20. For the scatterplot on the right, determine which, if any, of these functions might be used as a model for the data. O Quadratic: f(x) = ax + bx + c Polynomial, not quadratic Sales (In millions) Exponential: f(x) = apkx, k>> 0 Exponential: f(x) = ae - kx, k>>0 a Logarithmic: f(x) = a + b Inx Logistic: f(x) = - Itbe - kx Year Which of the functions above might be used as a model for the data? A. Logistic: f(x) = = 1+be - kx O B. Exponential: f(x) = ack, k > 0 O C. Exponential: f(x) = ae -kx, k >0 O D. Polynomial, not quadratic O E. Logarithmic: f(x) = a + b Inx OF. Quadratic: f(x) = ax"+ bx + c