Answer the question.The graph of f'(x) is a parabola with vertex at (a, 0). The parabola opens down. What does this information tell us about the concavity associated with f(x)? Explain.
What will be an ideal response?
Concave up on (-?, a); concave down on (a, ?).
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Solve the problem.A landscaping company sells 40-pound bags of top soil. The actual weight x of a bag, however, may differ from the advertised weight by as much as 0.75 pound. Write an inequality involving absolute value that expresses the relationship between the actual weight x of a bag and 40 pounds. Over what range may the weight of a 40-pound bag of to soil vary?
What will be an ideal response?
Solve the problem using your calculator.The paired data below consist of the temperatures on randomly chosen days and the amount a certain kind of plant grew (in millimeters). Use a graphing calculator to model the data with a linear function that predicts a plant's growth as a function of temperature.
A. y = 7.30 + 0.122x B. y = 14.6 + 0.211x C. y = 7.30 - 0.112x D. y = -14.6 - 0.211x
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Graph the inequality.x - 5 ? 0
A. 
B. 
C. 
D. 