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ale4655 [162]
3 years ago
10

Please help!!! I'm unfortunately really bad at Algebra.

Mathematics
1 answer:
leonid [27]3 years ago
6 0

Answer:

c

Step-by-step explanation:

Beauc websqwne

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The point A = (7,4) is dilated from the origin by a scale factor r = 3. What are the coordinates of A' ?
fomenos

Given:

The coordinates of point A are (7,4).

It is dilated from the origin by a scale factor r = 3.

To find:

The coordinates of A'.

Solution:

If a figure is dilated from the origin by a scale factor k, then

(x,y)\to (kx,ky)

Here, the figure is dilated from the origin by a scale factor 3, so the rule of dilation is given by:

(x,y)\to (3x,3y)

Using this rule, we get

A(7,4)\to A'(3(7),3(4))

A(7,4)\to A'(21,12)

Therefore, the coordinates of point A' are (21,12).

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2 years ago
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Answer:

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Step-by-step explanation:

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Use the slope formula to find the slope of the line passing through the given points. (–4, 7) and (0, 8)
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The first picture is for (-4, 7) and the second picture is for (0, 8)

6 0
3 years ago
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Determine the equation of the line, written in slope-intercept form, that passes through the points (1,1) and (5,−1).
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Answer:

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Step-by-step explanation:

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kolbaska11 [484]

Answer:

t(5)=600.................

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