Data task 89: A New Zealand Level 2 learner connects multiple ideas in an applied local or national context. The function f(x)=−(x−5)²+67 models output. What is its maximum value?

Data task 89: A New Zealand Level 2 learner connects multiple ideas in an applied local or national context. The function f(x)=−(x−5)²+67 models output. What is its maximum value?

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