How to write an equation in point slope form if the slope is 1 and -2 , -1 is on the line

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.

Write a story that matches with the expression 42x-5 pls hurry

What is the y-intercept of the line given by the equation