Question Video: Evaluating Rational Functions | Nagwa Question Video: Evaluating Rational Functions | Nagwa

# Question Video: Evaluating Rational Functions

Find π(6) for the function π(π₯) = 3/(π₯ + 7).

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### Video Transcript

Find π of six for the function π of π₯ equals three over π₯ plus seven.

We know that π of π₯ equals three over π₯ plus seven. This means wherever weβre evaluating the function at π₯, we need to plug that value in in the function. Weβre interested in π of six and so we plug six π for π₯-variable.

π of six is equal to three over six plus seven. Six plus seven equals 13. And the numerator doesnβt change. Thereβs nothing we can divide the numerator and the denominator by to simplify this fraction. And so, we can say that π of six is equal to three over 13.

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