Functions and Equations College Algebra
I need help answering these practice questions. I have attached the questions that I need help with. Please explain your answers in detail. 1. Which of the ordered pairs (3, 1), (0, -4), (-4, 0), (-3, -7)are solutions for the equation x - y = 4? 2. Given f(x) = 5x - 1, find f(a + 3). 3. Solve by completing the square.