3)2 = 0 The is y-intercept (0) = 2 . f = −3. x The is −3 . x-intercept b. The domain is (−∞, ∞) . The range is ⎡15 , ∞ ⎞ The is y-intercept . (0) = 9 . f ⎢⎣ ⎟ 8 ∞ c. Increasing on ; decreasing on ⎛ 1 , ⎞ ⎛ −∞, 1 ⎞ . ⎜ 4 ⎟ ⎜ ⎟ 4 ⎝ ⎠ ⎝ ⎠
3)2 = 0 x = −3. The x-intercept is −3 . The y-intercept is f (0) = 2 . The y-intercept is f (0) = 9 . b. The domain is (−∞, ∞) . The range is ⎡15 , ∞ ⎞ . ⎢⎣ 8 ⎟ c. Increasing on ⎛ 1 , ∞ ⎞ ; decreasing on ⎛ −∞, 1 ⎞ . ⎜ 4 ⎟ ⎜ 4 ⎟ ⎝ ⎠ ⎝ ⎠
Downloadable-Solution-Manual-for-Precalculus-Concepts-Through-1.docx