Consider the function f(x) =x/x^2+1 (a) Find all values ofxfor which f(x) is positive or negative....

Consider the function f(x) =x/x^2+1

(a) Find all values ofxfor which f(x) is positive or negative. Discuss the behaviour of f(x) as x gets very large (in both the positive and negative direction).

(b) Draw a sign diagram clearly showing the values of x for which f(x) is increasing and decreasing. Hence find the critical points off(x) and determine their nature.

(c) Draw a sign diagram clearly showing the values of x for which f(x) is concave up and concave down. Hence identify any points of inflection off(x).

(d) Sketch the graph of f(x), clearly showing all the features identified above.

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Expert Solution

milcah answered 1 year ago

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