00:01
Okay, moving on to number 42, we're determining whether these two lines are the same line, parallel lines, or if they intersect.
00:09
And in order to do that, we're going to convert them into y equals mx plus b, slope intercept form.
00:17
So we're starting by moving the x term to the other side of the equal sign.
00:23
So this equation is y equals negative 3x plus 0.
00:29
We don't have to write the plus zero but it may help us for determining these two lines and my second equation 2y equals negative 6x there's a 2 with the y so we have to divide that 2 out that becomes 1 which we don't have to write so we have y equals negative 3x now negative 6 divided by 2 is negative 3.
01:00
Now, when there's not a y intercept, that's the same as having a plus zero.
01:06
So whether i wrote the plus zero or not on both of these equations, we can see that these two lines are the same.
01:14
They have the same slope and they have the same y intercept...