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vredina [299]
3 years ago
8

What is the slope intercept form of the equation for the line that has a slope of -2 and a y-intercept of 3?

Mathematics
1 answer:
Misha Larkins [42]3 years ago
7 0

Answer:

y = - 2x + 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

here m = - 2 and c = 3, hence

y = - 2x + 3 ← equation in slope- intercept form

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A motorboat travels 165 kilometers in 3 hours going upstream and 510 kilometers in 6 hours going downstream. What is the rate of
nikitadnepr [17]
<h3>Rate of the boat in still water is 70 km/hr and rate of the current is 15 km/hr</h3><h3><u>Solution:</u></h3>

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A motorboat travels 165 kilometers in 3 hours going upstream and 510 kilometers in 6 hours going downstream

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Upstream distance = 165 km

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<h3><u>Find upstream speed:</u></h3>

speed = \frac{distance}{time}\\\\speed = \frac{165}{3}\\\\speed = 55

Thus upstream speed is 55 km per hour

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<h3><u>Find downstream speed:</u></h3>

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<em><u>If the speed of a boat in still water is u km/hr and the speed of the stream is v km/hr, then</u></em>

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