Find the slope and y-intercept of the line.y = 2x + 
A. slope = 
; y-intercept = - 
B. slope = 
; y-intercept = 2
C. slope = 2; y-intercept = 
D. slope = - 2; y-intercept = - 
Answer: C
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Solve the problem.In one area, the lowest angle of elevation of the sun in winter is 25° 1'. A fence is to be built 
away from a plant in the direction of the sun. (See drawing) Find the maximum height, x , for the fence so that the plant will get full sun. Round your answer to the tenths place when necessary.
A. 5.5 ft B. 6.2 ft C. 6.5 ft D. 7.7 ft
Find the limit, if it exists.
A. 0 B. ? C. 1 D. -?
Solve using substitution:
Solve the problem.The number of television sets produced on an assembly line varies jointly as the number of employees working on the line and the number of hours they work. If 40 workers produce 90 televisions in 3 hours, how many televisions can be produced by 139 employees working for 5 hours? Round your answer to the nearest number of televisions.
A. 528 B. 521 C. 516 D. 524