What is the equation of a line that contains the point (1,6) and has a y- intercept of 4

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need

The graph of a function f(x)=(x+2)(x-4). which describes all of the values for which the graph is negative and increasing? all real values of x where x< -2 all real values of x where -2

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?