Stitz-Zeager_College_Algebra_e-book

If b2 4ac 0 the equation ax2 bx c 0 has no real

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Unformatted text preview: ) f (x) = 3|x + 4| − 4 f − 16 = 0, f − 8 = 0 3 3 8 x-intercepts − 16 , 0 , − 3 , 0 3 y -intercept (0, 8) Domain (−∞, ∞) Range [−4, ∞) Decreasing on (−∞, −4] Increasing on [−4, ∞) Relative and absolute min. at (−4, −4) No relative or absolute maximum 137 y −2 −1 −1 1 2 x −2 −3 −4 −5 −6 y 8 7 6 5 4 3 2 1 −8 −7 −6 −5 −4 −3 −2 −1 −1 x 1 −2 −3 −4 |x + 4| x+4 No zeros No x-intercept y -intercept (0, 1) Domain (−∞, −4) ∪ (−4, ∞) Range {−1, 1} Constant on (−∞, −4) Constant on (−4, ∞) Absolute minimum at every point (x, −1) (f) f (x) = |2 − x| 2−x No zeros No x-intercept y -intercept (0, 1) Domain (−∞, 2) ∪ (2, ∞) Range {−1, 1} Constant on (−∞, 2) Constant on (2, ∞) Absolute minimum at every point (x, −1) (g) f (x) = where x < −4 Absolute maximum at every point (x, 1) where x > −4 Relative maximum AND minimum at every point on the graph y 1 −8 −7 −6 −5 −4...
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This note was uploaded on 05/03/2013 for the course MATH Algebra taught by Professor Wong during the Fall '13 term at Chicago Academy High School.

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