Answer:
A. y=3x but 3 is the slope
hope this helps
have a good day :)
Step-by-step explanation:
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Step-by-step explanation:
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what grade us it maybe u can help you but if I cant I'm sorru
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Work Shown:

You could expand terms out and simplify, but I think it's more handy to leave it in this form so you can easily spot the center and radius from a glance.