The y intercept = -4
Also, the slope of the line (if needed) is -2.
Answer:
Verified
Step-by-step explanation:
Use
,
and 
LHS=
=RHS
Answer:
4
Step-by-step explanation:
Supplementary angles add up to 180º
If one is 40º, then the other is (180º-40º) = 140º
None of those choices describes a plane.
choice C is the only example of a plane.