Answer:
B
Step-by-step explanation:
Noting the following rule of radicals
×
=
Given
( +
)(
-
)
Each term in the second factor is multiplied by each term in the first factor
= (
-
) +
(
-
) ← distribute parenthesis
= -
+
-
Answer:
y= -x+b
Step-by-step explanation:
hello :
the slope for the line : - x+y=2 is 1 because -x+y = 2 means y= 1x+2
all lines perpendicular to the line -x+y=2 have equation : y = ax+b
when : a×(1) = -1 so : a=-1
an equation is : y= -x+b
look the graph for the line : -x+y=2 (color red) and some lines
perpendicular to this line
