Answer:
The correct answer is option B.  
m<3 = m<6
Step-by-step explanation:
From the figure we an see that, a and b are parallel lines and line t is the traversal on the lines.
<u>To find the correct option</u>
From the given figure we get 
Corresponding angles are,
<1 & <5,  <2&<6, <2&<7 and <4 &<8
Alternate interior angles are,
<3 & <6  and <4 &<5
Alternate interior angles are equal.
m<3 = m<6
Therefore the correct answer is optionB
 
        
                    
             
        
        
        
Answer:
Not a function
Step-by-step explanation:
If you use the line/ pencil test ***I think that's what it's called...
you put a pencil flat on the graph and if it touches more than one point, it is not a function. This only works with some graphs.But it works with this one.