Y = 3bx - 7x
y = x(3b - 7)
Divide each side by 3b - 7 (assume that it is not zero).
Answer:
y = x(3b - 7)
Divide each side by 3b - 7 (assume that it is not zero).
Answer:
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Part (a)
<h3>Answer: y1 and y3 are perpendicular</h3>This is because the two slopes 2 and -1/2 multiply to -1. Perpendicular slopes multiply to -1 assuming neither line is vertical or horizontal.
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Part (b)
Graph each line to see where they cross. The three points of intersection are
(0,4)
(2,-2)
(4,2)
The order of the points doesn't matter.
You could also form three systems of equations pairing up the equations, and solving each system. That way you can find the points of intersection. Graphing may be a better and faster route in my opinion. See the diagram below.
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Total time spent on work, drive cook and sleep
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Calculate Free Time
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24 - 18 = 6
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Answer: 6 hours of free time
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Total time spent on work, drive cook and sleep
--------------------------------------------------------------------
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Calculate Free Time
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24 - 18 = 6
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Answer: 6 hours of free time
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