I give brainliest. please help.

x2 y1, x4 y2, x6 y3, x8 y4

Step-by-step explanation:

You have to double the x for each y

See below...

Step-by-step explanation:

Key sentence: "twice as much blue paint as yellow paint."

So for 1 batch of blue paint, there will be 1/2 = 0.5 batches of yellow paint.

For 2 batches of blue paint, there will be 1 batch of yellow paint.

For 4 bathes of blue paint, there will be 2 batches of yellow paint.

Etc.

option a is correct.

step-by-step explanation:

scale factor: it is used to find proportional measurements.

proportions means having the same ratio.

scale factor is the ratio of the model measurement to the actual measurement in a simplest form.

or we can say that the ratio of any two corresponding lengths in two similar geometric figures

if the scale factor is more than 1, then it is an enlargement,

if the scale factor less than 1, then it is a reduction.

given the two geometric figure:

by definition of proportions, we have