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The range of the function f(x) = x + 5 is {7, 9}. What is the function’s domain?
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The range of the function f(x) = x + 5 is {7, 9}. What is the function’s domain?

User Shyann
by
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1 Answer

7 votes
f(x) = x + 5

R = {7; 9}

therefore

x + 5 = 7 nd x + 5 = 9
x = 2 and x = 4

Answer: {2; 4}
User Alex Reitbort
by
7.0k points
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