Which equation represents a line that passes through (2, –1/2) and has a slope of 3? me ! i need it now

a: y – 2 = 3(x + 1/2)
b: y – 3 = 2(x + 1/2)
c: y + 1/2 = 3(x – 2)
d: y + 1/2 = 2(x – 3)

Acable company wants to provide cell phone service for residents on an island. the function for the cost of laying the cable from the island to the mainland is c(x)= 6.500 square root x2+4, where x represents the length of the cable in feet. what are the domain and range of the function? a) domain: all real numbers range: all real numbers greater than or equal to 17,000 b) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 17,000 c) domain: all real numbers greater than or equal to 0 range: all real numbers greater than or equal to 13,000 d) domain: all real numbers greater than or equal to 13,000 range: all real numbers greater than or equal to 0

Two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: what is the approximate distance, in feet, between the two poles? 6.93 feet 8.66 feet 12.32 feet 15.59 feet

Which of the following statements is a true conclusion that can be made from the scaled bargraph?