The triangle pictured below represents a community garden, which is surrounded on

Mathematics

2 answers:

aleksklad [387]3 years ago

4 0

Answer:

C)88 is the answer.........

weeeeeb [17]3 years ago

4 0

Answer:

Step-by-step explanation:

10a-9=14a-25

10a-14a=-25+9

-4a=-16

a=4

10(4)-9+14(4)-25+6(4)+2

40-9+56-25+24+2

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What is the reflection of the point (−2, 3) across the y-axis?

vampirchik [111]

Answer:

distance to x-axis: 3 units
distance to y-axis: 2 units
the reflected point is (2, 3)

Step-by-step explanation:

The given point is (-2, 3), labeled point A in the attachment.

As you know, the distance from the x-axis is given by the y-coordinate. Here, that distance is ...

3 units from the x-axis

The distance from the y-axis is given by the magnitude of the x-coordinate. Here, that distance is ...

2 units from the y-axis

Note that the negative coordinate value means the point is located that distance to the left of the y-axis.

Reflecting the point across the y-axis means choosing a point that is the same distance (2 units) right of the axis instead of left of the axis. The sign of the x-coordinate value will be positive, instead of negative. (The y-coordinate remains unchanged,)

The reflected point is (2, 3).

_____

Additional comment

As we have seen, reflection across the y-axis changes the sign of the x-coordinate:

(x, y) ⇒ (-x, y) . . . . reflection across the y-axis

Similarly, reflection across the x-axis changes the sigh of the y-coordinate:

(x, y) ⇒ (x, -y) . . . . reflection across the x-axis