h = 3a + 28.6 A pediatrician uses the model above to estimate the height h of a boy, in inches, in terms of the boy’s age a, in years, between the ages of 2 and 5. Based on the model, what is the estimated increase, in inches, of a boy’s height each year?

h = 3a + 28.6 A pediatrician uses the model above to estimate the height h of a boy, in inches, in terms of the boy’s age a, in years, between the ages of 2 and 5. Based on the model, what is the estimated increase, in inches, of a boy’s height each year? Correct Answer 3

প্রশ্নে বলা হচ্ছে, প্রথমেই একটি সমীকরণ দেয়া আছে। এরপর বলা হচ্ছে, একজন শিশুরোগ বিশেষজ্ঞ 2 থেকে 5 বছরের শিশুদের বয়স বছরে অনুমান করার জন্য h = 3a + 28.6 সমীকরণ ব্যবহার করেন যেখানে এ হলো উচ্চতা। প্রতি বছর বালকদের উচ্চতার আনুমানিক বৃদ্ধি কত হতে পারে? দেয়া আছে, h = 3a + 28.6 উপরের সমীকরণটিতে ½ বের করতে বলা হয়েছে। আর এখানে 28.6 এবং 3 হলো ধ্রুবক আর a হলো চলক। আর উচ্চতা বৃদ্ধি চলকের উপর নির্ভর করলেও তা মূলত 3 এর সাথে সাথে বাড়বে। কাজেই বলা যায়, আনুমানিক উচ্চতা বৃদ্ধি পাবে 3 ইঞ্চি করে। তাই সঠিক উত্তর c).

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