General form of the line equation is: y= mx + c where m is the slope and c is the constant the slope here is given and equal to 3 so, m= 3 y= 3x +c to get the constant c, substitute with the point in this equation y= -2 & x = 1 -2 = 3*1 + c c = -5 then the equation of the line is y = 3x -5 y = 3x -3 -2 y +2 = 3(x-1) the answer is (B)
To find the answer you must first find the circumference of the circle. The circumference formula is C = 2 \pi r. So if you plug in 77 you get 483.8053. Then multiply that by 5 and you will have your final answer.