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Now, in this question, basically, you are studying in new blood pressure drug, right? and at a dose of, according to the question, at a dose of 5 micro, 5 minogram, right? at a dose of 5 mini gram, the slope of the dose response curve is minus 2 m, you know, mercury, you know, column, right? m g right so and approximately how much would patients blood pressure change if the drug dose was increased to 5 .1 and of course by the supposed the pressure as a function of the dose x right it's given by this then approximately of course it can be given by and if you look at near 5 grams, 5mg, right? so in other words, if we write x as equals 5 plus delta, that is a change, right? then we can write it as p 5 plus delta, which according to taurus expansion, we know that this is approximately basically given by p5 plus delta times the derivative of p at 5, right? and the derivative, of course, is the slope, which is minus 2, right? and therefore, this is given by, now, p5 is the value at the 5, which is not interest to us...