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1. To identify the total number of minutes she practices, she uses the function rule where f(10)=250.

   What is the function rule?

   • A functioning rule is an equation that represents the relationship between the dependent and independent variables.
   • A functioning rule explains how to calculate the value of the dependent variable, say y, in terms of the independent variable, say x.
   • A functioning rule can be expressed verbally or symbolically.
   • When a function rule is written based on data from an input/output table, the pattern in the table must be represented by the function rule.
   • To begin, look for a pattern between the input and output numbers.

   To find f(10):

   • When we are finding f(10), that is like saying find how many minutes she practices if she practices 25 minutes a day for 10 days.
   • To find the answer, first, remember that y is the same as saying f(x).

   So to find f(10), you just have to plug in a 10 where you see an x.

   • f(10)=25 × 10
   • f(10)=250

   Therefore, to identify the total number of minutes she practices, she uses the function rule where f(10)=250.

   Know more about function rule here:

   https://brainly.com/question/27333887

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   The correct question is given below:
   Emily practices the piano 25 minutes a day. To identify the total number of minutes she practices, she uses the function rule:

   y = 25x.Find f (10)

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