Consider the function g(x) = x x + 3. a. Use the limit definition of the...
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Consider the function g(x) = x² x + 3. a. Use the limit definition of the derivative to determine a formula for g'(x). b. Use a graphing utility to plot both y = g(x) and your result for y = g'(x); does your formula for g'(x) generate the graph you expected? Let g be a continuous function (that is, one with no jumps or holes in the graph) and suppose that a graph of y = g'(x) is given by the graph on the right in Figure 1.4.4. 2+ -2+ ·N 2 -2 2+ -2+ O Figure 1.4.4. Axes for plotting y = g(x) and, at right, the graph of y = g'(x). a. Observe that for every value of x that satisfies 0 < x < 2, the value of g'(x) is constant. What does this tell you about the behavior of the graph of y = g(x) on this interval? b. On what intervals other than 0 < x < 2 do you expect y = g(x) to be a linear function? Why? c. At which values of x is g'(x) not defined? What behavior does this lead you to expect to see in the graph of y = g(x)? d. Suppose that g(0) = 1. On the axes provided at left in Figure 1.4.4, sketch an accurate graph of y = g(x). Consider the function g(x) = x² x + 3. a. Use the limit definition of the derivative to determine a formula for g'(x). b. Use a graphing utility to plot both y = g(x) and your result for y = g'(x); does your formula for g'(x) generate the graph you expected? Let g be a continuous function (that is, one with no jumps or holes in the graph) and suppose that a graph of y = g'(x) is given by the graph on the right in Figure 1.4.4. 2+ -2+ ·N 2 -2 2+ -2+ O Figure 1.4.4. Axes for plotting y = g(x) and, at right, the graph of y = g'(x). a. Observe that for every value of x that satisfies 0 < x < 2, the value of g'(x) is constant. What does this tell you about the behavior of the graph of y = g(x) on this interval? b. On what intervals other than 0 < x < 2 do you expect y = g(x) to be a linear function? Why? c. At which values of x is g'(x) not defined? What behavior does this lead you to expect to see in the graph of y = g(x)? d. Suppose that g(0) = 1. On the axes provided at left in Figure 1.4.4, sketch an accurate graph of y = g(x).
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