How to Evaluate f(-1) and Solve for f(x) = 3 from a Graph

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Given the following graph
a. Evaluate f(−1).
b. Solve for f(x) = 3.

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#Functions #FunctionNotation #Math
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Thanks so much! Helped me out a lot :)

yuzuna
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Isn't the answer for f(x)=3, x=7? The formula for this particular graph is f(x) = sqrt(x+2). When this is plugged into the graphing calculator: x is 7, when y is 3.

priscillam
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Thanks man, when my teacher taught me this I didn't understand, but now I do! :D

rosemberglopez
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THANK YOU SO MUCH, I have a test tomorrow about this and this make the topic so much clearer for me. God bless you man! 😁

juanpaelnino
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you helped me but you also took so long to say such a simple thing

altynay