Paralell to x=c1 is x=c2 where c1 and c2 are constants
for x=2, passing through (-1,-5), that is (x,y)
x=-1 is the line
Answer:
10000 options
Step-by-step explanation:
There are 10 options of digit from 0 to 9. It means there are 10 options for the first slot, 10 for the 2nd slot, 10 for the 3rd slot, and 10 for the last slot of each of the 4 slots of the password. For all 4 passwords the total amount of choices would be

0x1+3xone tenth+6xone hundredth+2xone thousandth
C May be the answer sorry if it is wrong.
Answer:
Y = <u><em>5x</em></u> + <em><u>3</u></em>
Now for the other one if your asking is:
Y = <em><u>-12x</u></em> + <em><u>4</u></em>
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Hope this helped if so please mark brainlist!