Respuesta :
Keywords
parallel, perpendicular, graphing, linear equation, slope, lines
we know that
If two lines are perpendicular, then the product of their slope is equal to minus one
so
[tex]m1*m2=-1[/tex]
If two lines are parallel, then their slope are equal
[tex]m1=m2[/tex]
In this problem we have
[tex]y=x+11[/tex] --------> linear equation A
the slope is [tex]m1=1[/tex]
[tex]y=-x+2[/tex] --------> linear equation B
the slope is [tex]m2=-1[/tex]
Find the product
[tex]m1*m2=-1[/tex] ---------> the lines are perpendicular
therefore
the answer is the option B
Perpendicular
using a graphing tool
see the attached figure

Answer:
Perpendicular
Step-by-step explanation:
Given are two equations as
[tex]y=x+11\\y=-x+2[/tex]
We have to find whether these two are parallel or perpendicular or neither
For this first we have to find the slope of these two lines
I line slope = 1
II line slope =-1
Since slopes are not equal, the lines are not parallel.
Let us check product of these slopes. IF product =-1 the lines are perpendicular
We find that product = [tex]1*-1=-1[/tex]
Hence two lines are perpendicular