23. = 2 x2 20. ( = 1 + 2 x) x2 4 Using the graph of = , compress vertically y x2 Using the graph of ( = f , stretch vertically by a y x2 factor of 2. f x) by a factor of 1 , then shift up 2 units. 4 ( = 1 − 2 x) x2 21. 4 24. = + ( 2 4 f x) x2 = , compress vertically y x2 Using the graph of f by a factor of 2, then shift down 2 units. the graph of = , stretch vertically by a y x2 factor of 2, then shift up 4 units. 22. ( = 2 − 3 f x) x2 = , stretch vertically by a Using the graph of y x2 = + 1 1 x) x2 factor of 2, then shift down 3 units. 4 f the graph of ( = 25. , compress vertically y x2 by a factor of 1 , then up 1 unit. 4
20. f ( x) = 2 x2 Using the graph of factor of 2. y = x2 , stretch vertically by a 23. f ( x) = 1 x2 + 2 4 Using the graph of y = x2 , compress vertically by a factor of 1 , then shift up 2 units. 4 21. f ( x) = 1 x2 − 2 4 Using the graph of y = x2 , compress vertically 24. f ( x) = 2 x2 + 4 by a factor of 2, then shift down 2 units. the graph of y = x2 , stretch vertically by a factor of 2, then shift up 4 units. 22. f ( x) = 2 x2 − 3 Using the graph of y = x2 , stretch vertically by a factor of 2, then shift down 3 units. 25. f ( x) = 1 x2 + 1 4 the graph of y = x2 , compress vertically by a factor of 1 , then up 1 unit. 4
Downloadable-Solution-Manual-for-Precalculus-Concepts-Through-1.docx