Provide an appropriate response.Determine whether a linear or quadratic function would be a more appropriate model for the graphed data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the coefficient of x2 should be positive or negative. DENTAL FLOSS USE 
Years since 2000
A. Quadratic; negative
B. Linear; positive
C. Linear; negative
D. Quadratic; positive
Answer: A
You might also like to view...
Find the exact value of the expression.cot-1 
A. 
B. 
C. 
D. 
Identify the domain and the range of the relation from the graph.
A. Domain: (-?, ?) Range: [0, ?) B. Domain: (-?, 0); Range: [0, ?) C. Domain: (-?, 0) Range [-3, ?) D. Domain: (-?, ?) Range: (-?, ?)
Solve the problem.Alison sets aside 
each month to spend on books and CDs. If she spends c dollars on CDs in a given month, she may spend b dollars on books, where 
Estimate the amount Alison may spend on books in March if she spends 
on CDs.
A. $45 B. $76 C. $41 D. $34
Solve the problem.The arch beneath a bridge is semi-elliptical, a one-way roadway passes under the arch. The width of the roadway is 38 feet and the height of the arch over the center of the roadway is 14 feet. Two trucks plan to use this road. They are both 10 feet wide. Truck 1 has an overall height of 
and Truck 2 has an overall height of 
. Draw a rough sketch of the situation and determine which of the trucks can pass under the bridge.
A. Truck 1 can pass under the bridge, but Truck 2 cannot. B. Both Truck 1 and Truck 2 can pass under the bridge. C. Truck 2 can pass under the bridge, but Truck 1 cannot. D. Neither Truck 1 nor Truck 2 can pass under the bridge.