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Sauron [17]
2 years ago
7

Which of the following does not describes a dilation?

Mathematics
2 answers:
Romashka-Z-Leto [24]2 years ago
7 0

Answer:

isometry

Step-by-step explanation:

Kamila [148]2 years ago
5 0

Answer:

isometry

Step-by-step explanation:

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What is the standard form equation of the line shown below? Graph of a line going through negative 2, 3 and 1, negative 3
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Answer:

3. 2x + y = −1

Step-by-step explanation:

To find the equation of the line, we write it first in the slope-intercept form:

y=mx+q

where

m is the slope

q is the y-intercept

From the graph, we see that the line crosses the y-axis at y = -1, so the y-intercept is -1:

q=-1

Now we have to find the slope, by calculating the rate of change of the line through 2 points:

m=\frac{y_2-y_1}{x_2-x_1}

Taking the two points at (-2,3) and (1,-3), we find:

m=\frac{-3-3}{1-(-2)}=\frac{-6}{3}=-2

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y=-2x-1

Now we have to re-arrange it in the standard form, so in the form

ax+bx=c

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To do that, we simply add +2x on both sides of the equation of the line in the slope-intercept form, and we get:

y+2x=-1

So, option 3).

6 0
3 years ago
A scientist finds the temperature of a sample at the beginning of an experiment is t degrees celcius. After 1 hour, the temperat
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So the two possible original temperatures would be either -9 or 9.
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Step-by-step explanation:

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Step-by-step explanation:

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