Roger is measuring the length of a hanging spring as various weights are added to it. using these measurements, he obtained the following regression equation: y = 0.006x + 11.5, where y is the length of the spring in centimeters and x is the mass added to the spring in grams. what is the meaning of the coefficient 0.006 in this equation?

B.) the length of the spring increases by 0.006 cm for every gram added to it.
 y = 0.006x + 11.50
where:y = length of the spring in centimetersx = mass added to the spring in grams11.50 = the first number in the sequence0.006 = the common difference among numbers in the sequence.
x       y1      11.5 + 0.006(1) = 11.50 + 0.006 = 11.506  2      11.5 + 0.006(2) = 11.50 + 0.012 = 11.5123      11.5 + 0.006(3) = 11.50 + 0.018 = 11.5184      11.5 + 0.006(4) = 11.50 + 0.024 = 11.5245      11.5 + 0.006(5) = 11.50 + 0.030 = 11.530
For every 1 gram added, the length of the string increases by 0.006cm
hope this helps

D. triangular pyramid