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反比例函数是初中数学学习的“三大函数”(一次函数、二次函数和反比例函数)之一,其重点是反比例函数的概念、图象和性质.1.考查求反比例函数的关系式I(A)OR P(9,4)94例1某种蓄电池的电压为定值,使用此电源时,电流I(A)与可变电阻R(Ω)之间的函数关系如图1.当用电器的电流为10A时,用电器的可变电阻为
The inverse proportion function is one of the “three functions” (primary, quadratic and inverse functions) in junior high school mathematics learning, and its emphasis is on the concepts, images and properties of inverse functions. I (A) OR P (9,4) 94 Example 1 The voltage of a certain type of battery is a fixed value. When using this power supply, the relationship between current I (A) and variable resistor R (Ω) When the current of the electric appliance is 10A, the electric resistance of the electric appliance is