Answer:
0
Explanation:
the range is the 'possible numbers' that the graph can take in relation to the y-axis.
this graph is a -Bx² graph (B is just any number, -x² since it's an x² graph upturned). the graph does not go any higher than 1 in the y-axis direction. so, 0 is the answer.
ps the range of this graph will be y ≤ 1