Identify the reflection of the figure with vertices t (−1, 3), u (−3, −17), and v (12, −8) across the y-axis.
t (1, −3), u (3, 17), v (−12, 8)
t (1, 3), u (3, −17), v (−12, −8)
t (−1, −3), u (−3, 17), v (12, 8)
t (3, −1), u (−17, −3), v (−8, 12)

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Twenty points. suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet