Question

What is the answer to number 10?

Answer 1

Y will be multiplied by 8.

Right option is (E)

Explanation:

We have, y = wx²

y is not 0.

If w and x are doubled

That means,

w' = 2w and x' = 2x

So , y' =w'x'²

or y' = (2w)×(2x)²

or y' = 2w×4x²

or y' = 8wx²

Since y = wx²

so y' = 8y.

That means if we double the w and x then y will be multiplied by 8.

Answer 2

E 8

Explanation:

y = w x^2

If we double w and x, replae w with 2w and x with 2x and solve for y

y = (2w) * (2x)^2

Do the powers first

y = 2w * (4x^2)

y = 8wx^2

Y is now increased by a factor of 8