Questions on Algebra: Functions, Domain, NOT graphing answered by real tutors!

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Question 167584: Solve y = -2x + 7 if the domain is {-2,0,4,7}: Solve y = -2x + 7 if the domain is {-2,0,4,7}
Answer by midwood_trail(310) About Me  (Show Source):
You can put this solution on YOUR website!
To solve, replace x with each integer given in the brackets and simplify.
You will need to do this for each number.
Keep in mind that x = domain and y = range.
So, when you are solving for y, you are actually solving for the range.
Can you take it from here?