A line containing the point 5 9 and -5 -5 is going from the bottom left to the top right. It is a positive slope.
B. horizontal
Line is going down and to the right.
vertical
Greater 'x' ===> greater 'y' . Slope is positive. Line is rising toward the right.
altitude
B. horizontal
Leftward straight.
Line is going down and to the right.
vertical
vertical
If you mean points of (-10, -6) and (-1, 8) then the slope of the line is 14/9 which is in a positive direction
false
Greater 'x' ===> greater 'y' . Slope is positive. Line is rising toward the right.
As you move from left to right, the line is rising at an angle of 57.26° degrees above horizontal.
False
It is a line through the point of symmetry. In general it is not an axis of symmetry.
The line and the point define a plane.