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saw5 [17]
3 years ago
15

Where on the graph of 2x - 6y = 7 is the x-coordinate twice the y-coordinate?

Mathematics
1 answer:
Nikolay [14]3 years ago
5 0

Answer:

The required point is P(-7,\frac{-7}{2}) where, x-coordinate twice the y-coordinate on line 2x - 6y = 7

Step-by-step explanation:

Given equation of line is 2x-6y=7

To find point on graph whose x-coordinate twice the y-coordinate:

Let y be y-coordinate of point

Hence, x-coordinate of point will be 2y

The required point is P(2y,y) on equation of line 2x-6y=7

Now,

2x-6y=7

2(2y)-6y=7

-2y=7

y=\frac{-7}{2}

Thus,

The required point is P(-7,\frac{-7}{2})

Note: Figure show equation of line red line and point P as blue dot.

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Following transformations on Triangle ABC will result in the Triangle A'B'C'

a) Reflection the triangle across x-axis
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In Triangle A'B'C, the coordinates of the vertices are:
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First consider point A of Triangle ABC.
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Coordinates of B are (3,12). Reflecting it across x-axis, we get the new point (3, -12). Moving 2 units towards right, the point is translated to (5, -12). Moving 6 units up we get the point (5, -6), which are the coordinate of B'. 

The same way C is translated to C'.

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3 years ago
Math fractions subhan cut a sandwich into 8 equal pieces and ate 1 piece. he had 7/8 left subhan put each of the remaining piece
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2 years ago
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3 years ago
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fenix001 [56]

Hey there! I'm happy to help!

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Have a wonderful day! :D

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