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Wittaler [7]
3 years ago
14

An equation of the line that passes through point (-2,0) and whose slope is 5/2​

Mathematics
2 answers:
elena-14-01-66 [18.8K]3 years ago
8 0

Answer:

eq of the line is y=2.5x +5 for line

Rudik [331]3 years ago
4 0

Answer:

y = 5/2x + 5

Step-by-step explanation:

Use the given slope and point to set up and solve the point-slope formula.

y - y = m ( x - x)

m = 5/2

(x , y) = (-2, 0)

y - 0 = 5/2 (x - -2)

y= 5/2x + 5

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                distance       =        rate      *       time

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We will fill in this table from the info in the problem then refer back to our drawing.  It says that one train is traveling 12 mph faster than the other train.  We don't know how fast "the other train" is going, so let's call that rate r.  If the first train is travelin 12 mph faster, that rate is r + 12.  Let's put that into the table

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Then it says "after 2 hours", so the time for both trains is 2 hours:

         

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Train 1                                        r           *          2

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Since distance = rate * time, the distance (or length of the arrow pointing straight west) for Train 1 is 2r.  The distance (or length of the arrow pointing straight east) for Train 2 is 2(r + 12) which is 2r + 24.  The distance between them (which is also the length of the whole entire arrow) is 232.  Thus:

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Step-by-step explanation:

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