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February 28, 2015

February 28, 2015

Posted by **mz tee** on Thursday, November 10, 2011 at 1:12am.

(a) vertex, (b) axis of symmetry, (c) intercepts, (d) domain, (e) range,

(f) intervals where the function is increasing,

(g) intervals where the function is decreasing, and

(h) the graph of the function. Please show all of your work.

(Points : 15)

- math -
**Steve**, Thursday, November 10, 2011 at 5:26amvertex: x = -b/2a = 8/-2 = -4, so y=-48: (-4,16)

axis: x = -4

x-intercepts: 0,-8

y-intercepts: 0

domain: all real x

range: all real y <= 16

y increasing where y' > 0

y' = -2x-8

y'>0 when x < -4

y decreasing for x > -4

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