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一、y=kx+b在温度计示数校正中的应用例1在标准大气压下,一支刻度均匀但不准的温度计,放在冰水混合物中示数为4℃,放入1标准大气压下的沸水中时示数为94℃.若将它放在教室内示数为22℃,则教室的实际温度为___℃;如果一杯热水的实际温度为50℃,则该温度计显示的温度为___℃.解析因为刻度是均匀的,所以温度计每增加相同的示数时,实际温度的增加也是相同的.温度计的示数和实际温度之间存在着线性关系:如果我们用x
A, y = kx + b in the thermometer calibration application Example 1 at standard atmospheric pressure, a uniform but not allowed to calibrate the thermometer on the ice water mixture, said the number of 4 ℃, into 1 atm Of boiling water when the show number is 94 ° C. If it is placed in the classroom show the number of 22 ° C, the actual classroom temperature is ___ ° C; if the actual temperature of a cup of hot water is 50 ° C, the thermometer shows the temperature of ___ ° C. Resolution Because the scale is uniform, the actual increase in temperature is the same for each additional increase in the thermometer. There is a linear relationship between the thermometer’s indication and the actual temperature: