Let f (x) = x^2 - 2bx where b is a constant. What can you say about the zeros, y-intercept, axis and symmetry and extreme value of f(x) in terms of b? Justify your answers

Which of the following are accepted without proof in a logical system? check all that apply.

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?