00:01
For this problem, it tells us to give an example, so i'll do like part a, i'll give an example of a system of equations with no solutions, and part b, an example of an equation with infinite solutions.
00:12
So for it to have no solutions, we need to have the same slope.
00:15
So i could write a system of equations with y equals mx plus b.
00:21
So i can say y is equal to 2x minus 3.
00:27
And we can have y equals 2x.
00:32
So these equations are not equivalent because they're both, they have equal slopes, and very clear to see that the slope is 2.
00:39
And the first one has a y intercept of negative 3, the second one has a y intercept of 0.
00:45
So these two lines will always increase and decrease at the same rates, and so they will never cross, and so therefore they will not have an intersection, and therefore no solution...