SOLUTION: Write the equation of the line passing through (4, 4) and (4, 2). A) y = 4 B) y = –2x C) x = 4 D) y = x + 4

Algebra ->  Equations -> SOLUTION: Write the equation of the line passing through (4, 4) and (4, 2). A) y = 4 B) y = –2x C) x = 4 D) y = x + 4       Log On


   

Question 44432: Write the equation of the line passing through (4, 4) and (4, 2).
A) y = 4 B) y = –2x C) x = 4 D) y = x + 4
Found 2 solutions by stanbon, tutorcecilia:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
x=4
Cheers,
Stan H.

Answer by tutorcecilia(2152) About Me  (Show Source):
You can put this solution on YOUR website!
Slope = m = 4-2/4-4 = 2/0 = undefined slope (cannot divide by zero).
Since the slope is undefined, the line is vertical and x will be a constant number. If the line were horizontal, y would be a constant number.
.
In both of the given points, (4, 4) and (4, 2), x = 4.