Which of the points A (16; 4), B (16; -4), C (0.09; 0.3), D (-25; 5) lie on the graph of the function y = √x?

We have the function y = x ^ (1/2).

1) A (16; 4). Substitute the coordinates of the point and check the resulting equality.

4 = 16 ^ (1/2). Right.

2) In (16; -4). To begin with, it is necessary to clarify that negative numbers do not enter the region of the value of our function, respectively, point B does not lie on the graph of the function.

3) C (0.09; 0.3). Substitute the coordinates of the point and check the resulting equality.

0.09 = 0.3 ^ (1/2).

4) D (-25; 5). To begin with, let’s clarify that the scope of this function does not include negative arguments (they cannot be under the root sign). This means that this point does not lie on the graph of the function.