What is the constant of variation, k, of the line y=kx through (3,18) and (5,30)? 3 6

6

Step-by-step explanation:

The constant of variation is the slope

k = (y2-y1)/(x2-x1)

  = (30-18)/(5-3)

   =12/2

   = 6

y = 6x

Step-by-step explanation:

Note that 18 is 6 times 3 and that 30 is 6 times 5.  This is a sure giveaway that the constant of variation, k, is 6.

Thus the equation representing this line is

y = 6x

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation:

17

step-by-step explanation:

51/3=17

thus 17 is your answer.