Solve.The following data represents the height (in inches) and weight (in pounds) of 9 randomly selected adults. 
Graph the data on a scatter diagram treating height as the independent variable. Find an equation of the line containing the points (62, 127) and (70, 181). Express the relationship using function notation. Graph the line on the scatter diagram. Interpret the slope of the line. Use the line to predict the weight of a person who is 68.2 inches tall. Round to the nearest pound.
What will be an ideal response?
y = 6.75x - 291.5
W(h) = 6.75h - 291.5
If height is increased by one inch, then weight will increase by 6.75 pounds
169 lb
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Solve the equation by the method of your choice. Simplify irrational solutions, if possible.
- 
r + 
= 0
A. {-2, 2} B. 0 C. {-2} D. {2}
Solve.A formula for the up-and-down motion of a weight on a spring is given by S = 2 sin 
t, where k is the spring constant, m is the mass, and t is the time. Solve the equation for t.
A. t = 
arcsin 
B. t = 
sin 
C. t = 
sin 
D. t = 
arcsin 
Solve the problem. Round your answer to the nearest tenth.Find the work done by a force of 7 pounds acting in the direction of 42° to the horizontal in moving an object 9 feet from (0, 0) to (9, 0).
A. 42.2 ft-lb B. 50.3 ft-lb C. 46.8 ft-lb D. 93.6 ft-lb
Write the whole number in expanded form.812
A. 8000 + 100 + 20 B. 81,200 C. 200 + 10 + 8 D. 800 + 10 + 2