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

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step-by-step explanation:

from the figure we get,

the x axis shows   the months and,

the y-axis shows the number of satisfied customer.

each line or each cell in upward direction (y-axis) shows 500.

the appropriate scale for the y - axis is: -

a = 2000 customers

b = 4000 customers

c = 6000 customers

d = 8000 customers

e = 10000 customers

f = 12000 customers

g = 14000 customers