Algebra question 9th grade
20 points

determindle wheter the graphs of the given equations are parallel, prependicular, or neither.

6.
y=x+11
y=-x+2
a. parallel
b. perpendicular
c. neither

7.
y=-2x+3
2x+y=y
a. parallel
b. perpendicular
c. neither

8.
y=4x-2
-x+4y=0
a. parallel
b. perpendicular
c. neither

determine wheter the statement is always, sometimes or never true.

9. two lines with positive slopes are parallel.
a. always
b. sometimes
c. never

10. two lines with the same slope and different y-intercepts are perpendicular.
a. always
b. sometimes
c. never