This is my final, this thing is hard

graph 1:no graph 2:no graph 3: yes graph 4: yes graph 5: no

graph 6: no

Step-by-step explanation:

Graph 1 I think is yes because when determining if a function, you do the vertical line test meaning you place an imaginary vertically on the graph and if there is 2 points on the line at once, like for graph 5 or 6, then it isn't a function.

Therefore,

Graph 1: Yes

Graph 2: No

Graph 3: Yes

Graph 4: Yes

Graph 5: No

Graph 6: No

d

step-by-step explanation:

i used the pitagoras theoreme

x-3y=4

step-by-step e