+15 XP

Code It: Build a Transformation

Question 1 of 3

Build a matrix that REFLECTS across the y-axis: (x, y) → (−x, y). Trick: the columns are where î and ĵ land. î=(1,0) → (−1,0); ĵ=(0,1) → (0,1). Fill in ĵ's landing y-value.

python
A = np.array([[-1, 0], [0, ]])