Question

jessie draws triangle ABC on a coordinate grid. The slope of line segment AB is 3/4, jessie then transforms triangle ABC using a single transformation to create triangle A’B’C’. She claims the slope of A’B’ sill still be 3/4.
For each transformation describe, whether it supports or does no support Jessie’s claim.
a) rotation of 180 degree around the origin
b) reflection across the line y=2
C) translation up 1.25 units
D) reflection across the X-axis

Answer 1

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Answer:

  A, C support Jessie's claim

Step-by-step explanation:

The required transformations must be ones that do not change the directions of lines. Rotating a line 180° will not change its direction. Translation will not change the direction of a line. However, reflection across a horizontal or vertical line will negate the slope.

Jessie's claim will be supported if her transformation is ...

  A) rotation 180°

  C) translation up

__

Jessie's claim will not be supported if her transformation is ...

  B) reflection across a horizontal line (y=2)

  D) reflection across a horizontal line (y=0)