marhin
Answered

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Somebody, please help a brother out :))

Somebody Please Help A Brother Out class=

Sagot :

Answer:

Step-by-step explanation:

When a point is rotated 90 degrees counterclockwise, there is a change in coordinates. The coordinates will change thus:

[tex]\rm (x \ ;\ y)\to(\ y \ ; \ - x)[/tex]

What is means is that after rotation, the vertical component becomes the new horizontal component and the new vertical component is the additive inverse of the old horizontal component.

We will now establish the coordinates of our point and apply the transformation.

Let us call the vertices of the triangle ABC:

Transforming by interchanging (x, y) to (y, -x), we get:

[tex]\rm A'(4 \ ; -1) \\\\ B'(2 \ ; -5 ) \\\\ C'(5 \ ; -5)[/tex]

 

The graph is drawn below:

(The answer belongs to the tutor IfeanyiNnoluka)

View image kamilmatematik100504