Mathematics: What do you notice about the corresponding coordinates of the preimage and image after a reflection across the x-axis

What do you notice about the corresponding coordinates

Ответ:

alyssabond8325

30.05.2020

Mathematics

The x remains the same while the y changes sign. So if it’s (1,4) the reflection will be (1,-4). Hope fully that helps.

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Ответ:

maddyr04

03.02.2022

Mathematics

We know 12 gallons is 5/6, so there was some in the car already, the whole tank will be 6/6 or one whole.

if 12 is 5/6, how much is 6/6, or the whole thing?

$\bf \begin{array}{ccll}
gallons&tan\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
12&\frac{5}{6}\\\\
g&\frac{6}{6}
\end{array}\implies \cfrac{12}{g}=\cfrac{\quad \frac{5}{6}\quad }{\frac{6}{6}}\implies \cfrac{12}{g}=\cfrac{5}{6}\cdot \cfrac{6}{6}\implies \cfrac{12}{g}=\cfrac{5}{6}
\\\\\\
72=5g\implies \cfrac{72}{5}=g\implies 14\frac{2}{5}=g$

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What do you notice about the corresponding coordinates of the preimage and image after a reflection across the x-axis

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