6 Functions and Relations Lesson #1: Functions Review 4. Consider the quadratic funetionx) = 2x2 5x 6. 3) Sketch the graph of the function on the grid. b) Use the features of a graphing calculator to determine the zeros to the nearest hundredth. c) Use the quadratic formula to determine the exact values of the zeros in simplest radical form. \fFunctions and Relations Lesson It I: Firm-Hans Ranch! 5 Assignment 1. The equations of the graphs of five functions are given below. In each case, sketch the graph and determine i) the zeros (to the nearest tenth if necessary) ii) the domain and range. a)y=2.x+4 b)y=5x10 c) y=x2-2X15 zeros domain range 11. If f(x) = x2, write the following in terms of the function f. a) x+3 b ) ( x + 3 ) 2 c) 3x2 d) (3x)2 e) 4x2 - 7 f) 4(x2 - 7 ) g) -2x2 - 1 h ) ( -x + 4)2 i) -3(-x - 2)2 Copyright @ by Absolute Value Publications. This book is NOT covered by the Cancopy agreement. 8 Functions and Relations Lesson #1: Functions Review Choice Multiple 12. The function fis defined by f(x) = 2x2 + 3. Which of the following represents f(2x)? A. 2x2 + 3 B. 4x2 + 3 C. 8x2+ 3 D. 4x2+ 6