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Juli2301 [7.4K]
3 years ago
5

A line in the Cartesian plane passes through the points (–2, 4) and (2, –1). What are the rise and the run of the line?

Mathematics
2 answers:
soldier1979 [14.2K]3 years ago
7 0
Rise
___
run

y2-y1
____
x2-x1

-1-4
___
2--2

-5
___
4
rise: -5
run: 4
SpyIntel [72]3 years ago
7 0
Whether you call it "rise and run", slope, velocity, it all means the rate of change.  Which for a line is constant and it is mathematically:

m=(y2-y1)/(x2-x1), in this case:

m=(-1-4)/(2--2)

m=-5/4 or if you prefer

m=-1.25

Which means that your rise and run is -1.25 to 1.

For every increase in run by one unit, the rise, or height, decreases by 1.25 units.
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Darina [25.2K]

Answer:

1. What is the y-intercept? y = 4

2. What is the maximum point? 4

3. What are the x-intercepts? (write the negative one first) x = -2 and x = 2

Step-by-step explanation:

In simple terms, the y-intercept is the part (s) where the graph hits the vertical line.

The maximum point is the highest point of the graph, coincidentally the maximum point on this graph is right on the y-intercept.

In simple terms, the x-intercept is the part (s) where the graph hits the horizontal line.

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2 years ago
A group of adults and students went on a class trip to Washington, DC. The number of male students was 1 more than 7 times the n
liberstina [14]
Given:
adults = x
male = 7x + 1
female = (7x + 1)/2
total number of people = 82

x + (7x + 1) + [(7x +1)/2] = 82
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2x + 14x + 2 + 7x + 1 = 82 * 2
23x + 3 = 164
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23x = 161
x = 161/23
x = 7

adults = x = 7
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Answer:

Step-by-step explanation:

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<em>(2)</em> × [ - 3 ]

4x + 3y = 1 ........ <em>(3)</em>

- 3x - 3y = - 6 .... <em>(4)</em>

<em>(3)</em> + <em>(4)</em>

x = - 5

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<em>( - 5 , 7 )</em>

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<em>(1)</em> ÷ [- 3]

3x - y = - 6  ......... <em>(3)</em>

2x + y = - 4 ........ <em>(4)</em>

<em>(3)</em> + <em>(4)</em>

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2(- 2) + y = - 4 ⇒ y = 0

<em>(- 2, 0)</em>

<u><em>10).</em></u> \left \{ {{x-2y=14} \atop {10x-6y=0}} \right.

<em>(2)</em> ÷ 10

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0.6y - 2y = 14

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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