Ax-6=dx -8
ax-dx =-2
X(a-d)=-2
x=-2/(a-d)
Answer:
46
Step-by-step explanation:
7x+4
7(6)+4
42+4
46
Answer: Choice C: {-2, -1, 0, 3, 4}
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Work Shown:
Plug y = -13 into the equation and solve for x
y = 5*x - 3
-13 = 5*x - 3
-13 + 3 = 5*x - 3 + 3
-10 = 5*x
5*x = -10
5*x/5 = -10/5
x = -2
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Plug y = -8 into the equation and solve for x
y = 5*x - 3
-8 = 5*x - 3
-8 + 3 = 5*x - 3 + 3
-5 = 5*x
5*x = -5
5*x/5 = -5/5
x = -1
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Plug y = -3 into the equation and solve for x
y = 5*x - 3
-3 = 5*x - 3
-3 + 3 = 5*x - 3 + 3
0 = 5*x
5*x = 0
5*x/5 = 0/5
x = 0
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Plug y = 12 into the equation and solve for x
y = 5*x - 3
12 = 5*x - 3
12 + 3 = 5*x - 3 + 3
15 = 5*x
5*x = 15
5*x/5 = 15/5
x = 3
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Plug y = 17 into the equation and solve for x
y = 5*x - 3
17 = 5*x - 3
17 + 3 = 5*x - 3 + 3
20 = 5*x
5*x = 20
5*x/5 = 20/5
x = 4
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The domain is the set of x value results we got, so the domain is {-2, -1, 0, 3, 4}
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.
Answer:
72 + a (1 + a)
Step-by-step explanation: