Question

Write the mirror image of the point (-3,-4) with respect to (i) y axis (ii) x axis.

Answer 1

Answer:

(i) 3,-4

(ii) -3,4

Explanation:

Answer 2

Answer:

The mirror image of the point $(-3,-4)$ about the y-axis is $(3,-4)$ and about the x-axis is $(-3,4)$.

Explanation:

• To find the mirror image of a point about the x-axis, keep the abscissa constant and change the sign of the ordinate.
• To find the mirror image of a point about the y-axis, keep the ordinate constant and change the sign of the abscissa.

Solution part (i)

The formula used to find the mirror image of a point about the y-axis:

The mirror image of the point $=(-x,y)$

So, the mirror image of the given point about the y-axis $=(3,-4)$

Solution part (ii)

The formula used to find the mirror image of a point about the x-axis:

The mirror image of the point $=(x,-y)$

So, the mirror image of the given point about the x-axis $=(-3,4)$