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Ivanshal [37]
4 years ago
15

Find the equation of a line parallel to y=−2x+4 that contains the point (−2,−5). Write the equation in slope-intercept form.

Mathematics
1 answer:
shtirl [24]4 years ago
3 0
Y=-2x-9, because the slope needs stay the same to be parallel and -2x-2 is 4 so to get -5 you have to subtract 9 from 4
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CAVES The temperature inside Mammoth Cave in Kentucky is about
Vaselesa [24]

Answer:

14.6°C

Step-by-step explanation:

Method 1

Higher value - lower value

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12.2 + 2.4

14.6°C

Method 2

-2.4°C to 0°C = 2.4 increase (+2.4°C)

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A triangle is to be dilated with the origin as the center of dilation and with a scale factor of 2. Which answer choice correctl
saveliy_v [14]

Answer:

All the coordinates are changed to

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Step-by-step explanation:

Given - A triangle is to be dilated with the origin as the center of dilation and with a scale factor of 2.

To find -  Which answer choice correctly maps this dilation algebraically?​

Proof -

Let ABC is a triangle where A, B, C are the vertices of the triangle respectively.

Now,

Let the coordinates be (x, y)

If a triangle is to be dilated with the origin as the center of dilation and with a scale factor of a , then the coordinated be changes as

(x, y) ⇒ (ax, ay)

Here given , a = 2

So, all the coordinates are changed to

(x, y) ⇒ (2x, 2y)

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