Is -13x+3 increasing or decreasing negative or positive slope

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

How do i do this activity, is appreciated

The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a “standard” earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.