Chapter 2 - Linear and Quadratic Functions - Section 2.3 Quadratic Functions and Their Zeros - 2.3 Assess Your Understanding - Page 146: 90

(a) See graph. (b) $0,4$ (c) See graph.

(a) To obtain the graph of $y=3(x-2)^2-12$ from $y=x^2$, shift the curve 2 units to the right, stretch vertically by a factor of 3, then shift 12 units down. See graph. (b) We can find the real zeros $x=0,4$ (c) See graph.