What can you say about a solution of the equation y' = - y2 just by looking at the differential equation? the function y must be decreasing (or equal to 0) on any interval on which it is defined. the function y must be increasing (or equal to 0) on any interval on which it is defined.

The function y must be decreasing (or equal to 0) on any interval on which it is defined.

Step-by-step explanation:

The derivative of a function gives us the rate at which that function is changing. In this case, -y^2, yields a negative value for every possible value of y, thus, the rate of change is always negative and the function y is decreasing (or equal to 0) on any interval on which it is defined.

by definition, an arc subtended by a central angle of some given measure has the same measure. so .