Question

Find the slope, if it is defined, of each line. If the slope is undefined, state this.

see attachment ! Please show all work!

Answer 1

The rise of the slope is defined by (-x, 2y) and by extending this to the y-axis you can see it cuts at y=7
The gradient from the first definition of the slope rise is -1/2
Hence the slope is found as in your question but you have all the information now to label the line algebraically

y = -1/2x + 7
or
1/2x + y - 7 = 0

Answer 2

Sorry it is very early here.

The slope is y/x so 2/-1 or -2
the equation therefore is
y = 7 -2x

Answer 3

thank u it early here im in the usa!