2/7 im pretty sure hope it helped
9514 1404 393
Answer:
(-11, -8)
Step-by-step explanation:
Reflection across the x-axis changes the sign of the y-coordinate.
For X(-11, 8), the reflected point is X'(-11, -8). (matches the last choice)
The sum of the first n natural numbers and 0=
n*(n+1)/2
