Rotate the triangle on the graph 90° counterclockwise about the origin. determine the orientation of the triangle after the rotation and place it in the correct position.

Hence, last option is true.

Step-by-step explanation:

Rotation of point through 90° about the origin in anticlockwise direction when point M (h, k) is rotated about the origin O through 90° in anticlockwise direction. The new position of point M (h, k) will become M' (-k, h).

We are given the coordinates of the given triangle as:

(-5,0),(-2,3),(-4,5)

Hence after rotation 90° anticlockwise the new coordinates of the transformed triangle will be:

(0,-5),(-3,-2),(-5,-4).

Hence we can show this transformation with the help of the figure attached to the answer.

make sure you have version 2.50

try looking in the very back of the book : )

step-by-step explanation:

you can download it here

3

step-by-step explanation:

because where the point where the 2 lines intersect is (3,-1) the x value is 3