Whenever you reflect a point over the x axis, the x coordinate stays the same and the y coordinate is negated. In this case, the y coordinate which is 3 will be negated to become -3, and the x coordinate which is -5 will remain the same. Therefore, the new point is (-5,-3).
The rule for reflecting a point across the x-axis is <em>(x,-y)</em>. We then apply this rule to our given coordinate, giving us the new location of (-5,-3).
The boy walks at a constant speed V=3 m/s where V is his velocity 1 minutes has 60 seconds Thus we conclude during 1 minute he travels : 60 seconds × 3 meters/second = 180 meters
30% of 50 is 15 beacuase 50 is 1/2 of 100, and of 100 students 30 would have submtted forms. 1/2 of 30 is 15 which s the number of students that turned n forms
