Which rule describes the transformation that is a reflection across the x-axis? (x, y) → (–x, y) (x, y) → (y, x) (x, y) → (x, –y) (x, y) → (–x, –y)

Samantha swam upstream for some distance in one hour. she then swam downstream the same river for the same distance in only 12 minutes. if the river flows at 4 mph, how fast can samantha swim in still water?

How many days was the temperature above 90 degrees?

What term best describes a line ans a point that lie in the same plane