Prac%ce Problems 11.20.13
Matching
For each set of problems, you need to do three things. First, use context clues to match the problem statement to the correct set of prac%ce problems. Second, determine the correct solu%on to to each problem. Third, write at least two complete sentences explaining how to use the Nspire to determine the solu%on.
The graph below shows the amount of force needed to stretch a certain spring to various distances. Which of the following best represents the difference between the amount of force in pounds needed to stretch the spring to 10 inches and the amount needed to stretch it to 4 inches?
F 6 lbs G 14 lbs H 30 lbs J 70 lbs
Luxury Limousine charges a fee of $50 per hour to rent a limousine plus $0.15 per mile driven. Which equation can be used to determine c, the total cost to rent a limousine for 3 hours, if m represents the number of miles the limousine is driven? A c = 50 + 0.15m B c = 50 + 0.45m C c = 150 + 0.45m D c = 150 + 0.15m
If (-3.5, y) is a solution to the equation 2x – 5y = 10, what is the value of y?
F -3.4 G 13.75 H -0.6 J -3.75
An artist studies human proportions in order to make realistic drawings. He observes that a person’s kneeling height, y, is ¾ of the person’s standing height, x. Which equation best represents this relationship?
A y = ¾x B y = -¾x Cy=x–¾ Dy=x+¾
The squares below are arranged in a sequence to produce a geometric pattern. Which expression can be used to determine the perimeter of a composite figure made of s squares arranged in this pattern?
A 8s B 8s – 4 C 4s + 4 D 4s
The algebraic form of a linear function is , where d is the distance in miles and l is the number of laps. Which of the following choices identifies the same linear function? F For every 4 laps on the track, an athlete runs 1 mile. G For every lap on the track, an athlete runs 1/8 mile.
The graph below shows the number of light bulbs in thousands that the Electric Lightbulb Company sold from 1998 to 2001. If the trend shown on the graph continues, in what year can the Electric Lightbulb Company first expect to sell more than 1.3 million light bulbs?
A 2010 B 2008 C 2009 D 2011