2 years ago

Graph the image of square RSTU after a rotation 270° counterclockwise around the origin.

1 answer:

8 0

Rotating 270 degrees counterclockwise about the origin is the same as rotating 90 degrees clockwise about the origin, which can be expressed in coordinate notation $(x,y) \longrightarrow (y, -x)$ .

So, the vertices of the image are:

$U(4,0) \longrightarrow U'(0, -4)\\\\T(5,0) \longrightarrow T'(0, -5)\\\\S(5,-1) \longrightarrow S'(-1, -5)\\\\R(4, -1) \longrightarrow R'(-1, -4)$

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Which of the following describes the transformation from Figure 1 to Figure 2?

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Answer:

Rotation 90° CCW

Step-by-step explanation:

Note that Figure 1 has a small appendage off the larger rectangle. That appendage is pointing East (to the right).

In Figure 2, that same appendage is pointing North (up).

If you are facing East and you want to face North, you will find that you need to turn 90° in the counterclockwise direction. That is the transformation that was done here:

rotation 90° CCW about the origin

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3 years ago

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Question 7 of 10 What is the slope of the line shown below? A. 2 B.-2 C.4 D.-4

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Answer:

C. 4

Step-by-step explanation:

Use the slope formula y2-y1 / x2-x1

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