2 x i = ± The equation has no real roots, thus the parabola has (2) 4(2)2 1000 984 f = −16(2) + = no x-intercepts. The minimum point is 984 at 2 . x = Step 4: find the y-intercept: c. domain: (−∞, (0) (0 ∞) 2)2 5 [984, f range: = − +1 = ∞) Step 5: The axis of symmetry is = 2. x
x = 2 ± i The equation has no real roots, thus the parabola has no x-intercepts. f (2) = 4(2)2 −16(2) + 1000 = 984 The minimum point is 984 at x = 2 . Step 4: find the y-intercept: f (0) = (0 − 2)2 +1 = 5 Step 5: The axis of symmetry is x = 2. c. domain: (−∞, ∞) range: [984, ∞)
Precalculus-Essentials-5th-Edition-Blitzer-Solutions-Manual.docx