The following table shows a proportional relationship between x and y. x y
2 9
5 22.5
8 36
Write an equation to describe the relationship between x and y.

Assume x is directly proportional to y :

when y is 9, x is 2:

substitute to find value of k :

Therefore, equation is:

$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !