# How to do this question in regards of matrices and transformation?

##### 1 Answer

or simplified

#### Explanation:

From the matrices, the function is going to be dilated by a factor of 4 from the y-axis, 2 from the x-axis, translated 1 unit to the left and 4 units up.

Do the matrix multiplication first

Then the addition

Put it together to get

Now that we have expressions for x' and y', rearrange them to solve for x and y.

Finally, substitute the expressions for x and y into the original function to get the image function

Simplify to your heart's content!