Answer: 132
Step-by-step explanation:
Step 1 - Add 4 + 8 (12)
Step 2 - Muliplty 12 by 11 (132)
Step 3 - Divided 132 by 12 (checking the work - 11)
You should get 11 for the final answer, so b = 132
132 / 12 = 11
The graph of this projectile is a parabola. The tome to reach maximum height can be found using the formula t=-b/2a, where b is the linear term's coefficient and a is the quadratic term's coefficient. Plugging in the values for b and a, we arrive at t=-576/-32=18 seconds.
Answers:
- Graph B
- Choice C) y = 0.13x - 0.19
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Explanations:
- Notice how all of the points in graph B are near to a single line. This is the regression line. We don't have every point on the same line, but it's close enough. Graph A seems to suggest an exponential growth curve could work as the regression curve. Graph C seems to be randomly scattered points, so perhaps no function would work as the regression curve.
- I used technology to get the regression line. Specifically, I used GeoGebra. Any spreadsheet program or graphing calculator should be able to find the regression line. You can do so by hand, but I don't recommend it because it's tedious busy work in my opinion.
If the length of the short leg is "a" then the length of the long leg should be "2a" and since the point is on the x axis the point is (2a,0) because the y=0
