9514 1404 393
Answer:
y = 9
Step-by-step explanation:
The given line is a vertical line. The perpendicular line will be a horizontal line with the equation ...
y = constant
To make the line go through a point with a y-coordinate of 9, the constant must be 9.
y = 9 . . . . perpendicular to x = -4
1273 times
Charles
x+90+90+78=360(sum of 4 angles is always 360 degree)
x+258=360
x=360-258
x=102