it says y=-16x+181 represents number of students in class where x represents number of hours study required weekly. what is rate of change of number of students in class to number of hours study

since y(x) = -16x + 181

how does y change when x changes by 1?

the slope of the line is -16, meaning that for every increase in x by 1, y decreases by 16.

the slope of the line is the rate of change of y with respect to x.