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sashaice [31]
3 years ago
15

At 3:00 the temperature in Alaska began dropping at a constant rate. The equation y = –5x – 10 can be used to represent this sit

uation, where y is the temperature below zero and x is the time in hours the temperature has been falling.
Which statement best describes the temperature at 3:00, given this situation?

A. From a starting temperature of 10 degrees below zero, the temperature is rising 5 degrees per hour.

B. From a starting temperature of 10 degrees below zero, the temperature is falling 5 degrees per hour.



C. From a starting temperature of 5 degrees below zero, the temperature is rising 10 degrees per hour.

D. From a starting temperature of 5 degrees below zero, the temperature is falling 10 degrees per hour.
Mathematics
1 answer:
alina1380 [7]3 years ago
6 0

Answer:

C

Step-by-step explanation:

Hope this helps <3

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Line 1 and line 4 are parallel

Step-by-step explanation:

Two lines are said to be parallel if they have same slope.

In order to compare the lines given, we have to write them all in the same form, and then compare their slopes.

Line 1:

y=\frac{1}{3}(x+6)

Applying distributive property,

y=\frac{1}{3}x+2

Line 2:

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Line 3:

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Applying  distributive property,

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re-arranging,

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Now we have rewritten all the lines in the form y=mx+q, where m is the slope. By comparing the values of m, we see:

m_1 = \frac{1}{3}\\m_2=3\\m_3 = -3\\m_4=\frac{1}{3}

Therefore, the lines which are parallel are line 1 and line 4.

Learn more about parallel and perpendicular lines:

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3 years ago
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Step-by-step explanation:

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Step-by-step explanation:

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