Page 129 - Algebra

5. Which of the following is the graph of x2 – 4x + 4?
e) None of the above
6. The following equation
z = –3x2 + 150x – 775, represents the profit earned by an FMCG company in dollars, z, by selling x units of cold drinks. Find the maximum profit earned by the FMCG Company.
a) $1100 b) $1200 c) $1300 d) $1400 e) $1500
7. Sam, a renowned footballer, kicks the ball in the air and it’s given by the function h(t) = 120t – 8t2
where h is the height in meters, and t is the time in seconds.
Find the maximum height the ball can attain.
a) 900 meters b) 750 meters c) 600 meters d) 550 meters e) 450 meters
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Algebra I & II