Question

4. AQRS has vertices Q(2, 1), R(4, -2), and S(1, -3). Reflect AQRS across the y-axis and then translate it along the vector <1, 3>​

Answer 1

Q'' : (-1,4), R'' : (-3,1), S'' : (0,0)

Explanation:

Given the original vertices of ∆QRS is Q(2,1), R(4,-2), and S(1,-3). Given that these points must undergo a reflection across the y axis, and then a translation along the vector <1,3> means that there are a total of 2 transformations involved.

A reflection across the y axis means that the x value will be negative.

Q(2,1) → Q'(-2,1)

R(4,-2) → R'(-4,-2)

S(1,-3) → S'(-1,-3)