In the ordered pair of numbers (-2,8) the number - 2 is called the and the number 8 is called the

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

2x minus y equals 6, x plus y equals negative 3

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?