Answer:
Beatrice is incorrect. All of these points are not on the same line because the slope between (-2,-1) and (1,0) which are coordinates fr each of the pairs above, are equal to 1/2
Explanation:
Let m1 be first slope
Let m2 be second slope
m2 = (y2 - y1)/ (x2 - x1)
= (2-(-1)) / (4-(-2)
= (2+1) / (4+2)
= 3/6 =1/2
Thus, the slopes are different parallel lines because m1 =m2