Asked by Sarah

What is the range of 𝑓(𝑥)=5+√2+7x?

**the 2+7x is entirely under radical**
Answered by oobleck
f(x) = 5+√(2+7x)
since the root is never negative, f's minimum value is f(-2/7) = 5
since f(x) increases, the range is [5,∞)
Answered by Sarah
thank you
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