Tell whether a linear model or a quadratic model is appropriate for the data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the leading coefficient a of x2 should be positive or negative.The amount of sales tax paid as a function of the sales price.
A. linear; negative
B. quadratic; positive
C. linear; positive
D. quadratic; negative
Answer: C
You might also like to view...
Provide an appropriate response.Identify which of the following properties apply to the graph of 
I. The domain is all real numbers except integer multiples of ?. II. The principal cycle of the graph occurs on the interval (0, ?). III. The equations of the vertical asymptotes are 
, where n is an odd integer. IV. The x-intercepts are of the form n? where n is an integer.
A. III and IV B. II and III C. II and IV D. I and III
Use a calculator to estimate the limit.
A. Does not exist B. 2 C. 0 D. 4
Classify the statement as an example of theoretical or experimental probability.The probability of drawing the ace of hearts from a deck of cards is 
.
A. theoretical B. experimental
Find the square root.
A. 20 B. 1600 C. 80 D. 40