Question

a triangle on a coordinate plane is translated according to the rule $t_{- 8,4}(x,y)$. which is another way to write this rule?
$(x,y)\to(x + 4,y - 8)$
$(x,y)\to(x + 8,y - 4)$
$(x,y)\to(x - 8,y + 4)$
$(x,y)\to(x - 4,y - 8)$

Explanation:

Step1: Understand translation rule

In $T_{-8,4}(x,y)$, -8 is for x - shift and 4 for y - shift.

Step2: Write new rule

$(x,y)\to(x - 8,y + 4)$

Answer:

$(x,y)\to(x - 8,y + 4)$