In the year 1997, the surface elevation of Lake Powell was 3899 feet above sea level. In the year 2004, the surface elevation of Lake Powell was 3353.7 feet above sea level. Interpret the rate of change in this situation.
The surface elevation of Lake Powell is either decreasing or increasing and
at a rate of feet every 7 years? feet per year? feet? or years? choose one

Triangle xyz, with vertices x(-2, 0), y(-2, -1), and z(-5, -2), undergoes a transformation to form triangle x′y′z′, with vertices x′(4, -2), y′(4, -3), and z′(1, -4). the type of transformation that triangle xyz undergoes is a . triangle x′y′z′ then undergoes a transformation to form triangle x′y′z′, with vertices x″(4, 2), y″(4, 3), and z″(1, 4). the type of transformation that triangle x′y′z′ undergoes is a .