Solve the problem.The table shows the winning time for the women's 
run at seven consecutive summer Olympic Games.
Let x = 1 correspond to 1960 and let f(x) be the winning time for the women's 
run at the Olympics in year x. Using the points 
and 
style="vertical-align: -4.0px;" /> the following linear function is obtained to model the data: 
According to this model, will the winning time ever reach 10 seconds? If so, when? Do you think that it makes sense to use the model to make predictions for future years?
What will be an ideal response?
Yes, according to the model, the winning time will be 10 seconds in the year 2113. No, it does not make sense to use the model to extrapolate. Since the model was obtained by using data for the years 1960 and 1984, it is unlikely to give good estimates outside this range.
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Find the difference.-14 - 14
A. 0 B. -14 C. -28 D. 28
Graph the inequality.y ? x2 - 5
A. 
B. 
C. 
D. 
Find the open intervals where the function is concave upward or concave downward. Find any inflection points.
A. Concave upward on (-1, ?); concave downward on (-?, 2); inflection points at (-1, 0) and (2, -3)
B. Concave upward on (0, ?); concave downward on (-?, 0); inflection points at (-4, 0), (-1, 0), and 
C. Concave upward on (0, ?); concave downward on (-?, 0); inflection point at (0, -1)
D. Concave upward on (-1, ?); concave downward on (-?, 2); inflection point at (2, -3)
Translate to an equation and solve.9 is what percent of 50?
A. 1.8% B. 1800% C. 18% D. 0.18%