Line m passes through the points (-4, 3) and (-4, 7). what is the slope of the line that is parallel to line m? show all of your work for full credit. (do i have to find the slope for it? )

The slope of this line would be undefined.

Step-by-step explanation:

In order to find the slope of a parallel line, we first need to find the slope of the original line. We can do this by using the slope formula.

m(slope) = (y2 - y1)/(x2 - x1)

m = (7 - 3)/(-4 - -4)

m = (7 - 3)/(-4 + 4)

m = 4/0

Since we cannot divide by 0, we know the slope to be undefined. Also, since parallel lines have the same slope, we know the second line to also have an undefined slope.

m∠a is 90°

m∠b is 40°