Answer:
the last one D
Step-by-step explanation:
Solve by elimination
y-x=6
y+x=-10
2y=-4
÷2 both sides
y=-2
solve for X
-2+x=-10
+2 both sides
x=-8
(-8,-2)
The slope of the given line is 1/3.
The perpendiculars all have the negative reciprocal slope, -3.
<span>A. y + 2 = -3(x-4)
Yes, slope -3.
B. y - 5 = 3(x+11)
No, slope 3.
C. y = -3x - 5/3
Yes, slope -3.
D. y = 1/3 x - 2
No, that's slope 1/3.
E. 3x + y = 7
</span>
That's
y = -3x + 7
Another slope -3, Yes.