Question

The following table shows a direct variation.

3 15 18 27
y 5 6 9
Find y .

0
1
2
3

Answer 1

a direct variation takes the form y = kx , where x is the input value, y is the output, and k is a constant

so, you can take any of the x,y values in the table (except the first one) and plug them in for k

for example, the second column, x = 15, and y = 3

so plug in x = 15, and y = 3 into y = kx and solve for x

then, going back to the first column, plug in your x and k value into y = kx and solve for y

please tell me if anything is confusing or you want to check your solution