The slope of a vertical line is undefined.
Step-by-step explanation:
- The slope of a line in graph or any system could be given as the ratio of the change in the y coordinates to change in the x coordinates
- Here, it is given that the vertical line which passes through a single coordinate in the x-axis. There is only one coordinate is available in the x-axis. There are several points is available in the y coordinates.
- Hence, it is defined as undefined because, if the denominator has zero then it becomes undefined.
- Now, it is understood that the reason why the line has given has a slope undefined.
Answer:
X = 4, -6
Step-by-step explanation:
Solve for x by simplifying both sides of the equation, then isolating the variable.
Two different things u can do
Substitution:
X-9y=12
+9y +9y
X=9y+12
-3(9y+12)+9y=36
-27y-36+9y=36
+36 +36
-18y = 72
/-18 /-18
Y = -4
Or whatever this other I’ve is called
-3x-9y=36
-1(X-9y)=(12)-1
-3x-9y=36
-x+9y=-12
-4x=24
X= -6
D, because two negative signs next to each other means to add so its pretty much 7/8+1/8 which equals 8/8 which also equals 1
