Exercises: Represent and Describe Transformations

Work through each section in order. Show your reasoning where indicated.

Grade 9·21 problems·~30 min·Common Core Math - HS Geometry·standard·hsg-co-a-2

Work through problems with immediate feedback

Fluency Practice

Apply the given coordinate rule to find image coordinates. Show your computation.

$Coordinate plane showing triangle ABC with a dashed arrow indicating the translation direction from vertex A.$

Triangle $ABC$ has vertices $A(1, 2)$ , $B(4, 2)$ , and $C(2, 5)$ . A translation maps every point by the rule $T(x, y) = (x + 3, y - 1)$ .

What are the coordinates of $A'$ , the image of $A$ under $T$ ? Enter the $x$ -coordinate.