See explanation below
Step-by-step explanation:
1) let the number of cups of blue paint = x
the number of cups of yellow paint = y
Fromt the table, we have been frovided with data for both in the top part
when x = 2
y = 10
for the table to be proportional, we use the formula:
y = kx
where k = constant of proportionality
(2, 10) = (x, y)
10 = k(2)
k = 10/2
k = 5
For 2 cups of blue paint,
number of yellow paint to make green paint = 2 × 5 = 10
This means for 2 paint of blue, we need 10 paints of yellow
2) For one paint of blue, number of paint of green:
y = 5x
x = 1
y = 1 × 5 = 5
5 paints of yellow is needed
For a new pair, we can assign any number for x inorder to get value for y
if we use x = 5
y = 5x
y = 5 × 5 = 25
This means for 5 cups of blue paints, 25 cups of yellow paint is needed
The new pair (x, y) = (5, 25)
3) The proportional relationship represented by the table: y = 5x
4) since k is the constant of proportionality, the value of k we derived is 5
Hence, k = 5
k represents the constant value in the direct proportional relationship of x and y. It shows y is dependent on x. if x increses, y increases.