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2 years ago

When reflecting a figure across the x-axis, why does the y-value always change signs?

Mathematics

1 answer:

kati45 [8]2 years ago

7 0

Answer:

see description

Step-by-step explanation:

When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is transformed into its opposite (its sign is changed). Notice that B is 5 horizontal units to the right of the y-axis, and B' is 5 horizontal units to the left of the y-axis.

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mote1985 [20]

Here are the step for solving this:
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3 years ago

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dangina [55]

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3 years ago

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3 years ago

Read 2 more answers

Some friends plotted the locations of their house on a map. brianna's house is at (1,6), Jordan's house is at (5,3). What is one

Rufina [12.5K]

Let
A (1,6)------> location brianna's house on a map
B (5,3)------> location Jordan's house on a map

we know that
One possible path from brianna's house to jordan's house it's a straight line ( the shortest distance)

using a graph tool
see the attached figure

find the distance points AB
d=√[(y2-y1)²+(x2-x1)²]-----> d=√[(3-6)²+(5-1)²]----> d=√[3²+4²]
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3 years ago

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Slav-nsk [51]

The lateral surface area excludes the top and bottom, the bases as they're referred to here. So we have the 9×5 front and back, and the 9×6 left and right sides.

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3 years ago