Chapter 14.2, Problem 10WE

a.

To determine

To find: image of D $(-2,1)$ in the x-axis

Answer to Problem 10WE

  $R_{x-axis}:D=(-2,1)\to (-2,-1)$

Explanation of Solution

Given information: coordinate of point D is $(-2,1)$

image of $(-2,1)$ in the x-axis is $(-2,-1)$

b.

To determine

To find: image of D $(-2,1)$ in the y-axis

Answer to Problem 10WE

  $R_{y-axis}:D=(-2,1)\to (2,1)$

Explanation of Solution

Given information: coordinate of point D is $(-2,1)$

image of $(-2,1)$ in the y-axis is $(2,1)$

c.

To determine

To find: image of D $(-2,1)$ in the line $x=y$

Answer to Problem 10WE

  $R_{y=x}:D=(-2,1)\to (1,-2)$

Explanation of Solution

Given information: coordinate of point D is $(-2,1)$

the image of $(-2,1)$ in the line $x=y$ is $(1,-2)$