00:01
Okay, so here we consider the following form of a linear equation, ax plus b, y is equal to c, where a and b are real numbers, and a and b cannot both be zero.
00:10
So we want to use the fact that m is equal to negative a over b to find the slope of the line with equation 2x plus 3y is equal to 18.
00:23
So comparing this equation, we get that a is 2 and b is 3.
00:28
So putting 2 for a and 3 for b and m is equal to negative a over b, we get that our slope m is that equal to negative 2 thirds.
00:38
So therefore the slope of our given equation 2x plus 3y equals 18 is going to be negative 2 thirds.
00:45
And then for part b, we want to use the fact that m is equal to negative a over b to find the slope now of the line with equation 4x minus 2y is equal to.
00:59
Negative 1.
01:00
So here we get that a is 4, b is negative 2...