Mathematics, 21.10.2019 20:00 imtimthetatman
Consider the function f(x) = x³ − 13x² +44x − 32. a. use the fact that x − 4 is a factor of f to factor this polynomial. b. find the x-intercepts for the graph of f. c. at which x-values can the function change from being positive to negative or from negative to positive? d. to sketch a graph of x, we need to consider whether the function is positive or negative on the four intervals x < 1, 1 < x < 4, 4 < x < 8, and x > 8. why is that? e. how can we tell if the function is positive or negative on an interval between x-intercepts? f. for x < 1, is the graph above or below the x-axis? how can you tell? g. for 1 < x < 4, is the graph above or below the x-axis? how can you tell? h. for 4 < x < 8, is the graph above or below the x-axis? how can you tell? i. for x > 8, is the graph above or below the x-axis? how can you tell?
Answers: 1
Mathematics, 21.06.2019 17:10
Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.
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Mathematics, 21.06.2019 18:30
[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?
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Mathematics, 21.06.2019 20:30
Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.
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Mathematics, 21.06.2019 20:50
In the diagram, gef and hef are congruent. what is the value of x
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Consider the function f(x) = x³ − 13x² +44x − 32. a. use the fact that x − 4 is a factor of f to fac...
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