Quadratic Functions Review Worksheets With Answer Key Page 11
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14ID: A
PROBLEM
1. ANS:
a) y = −(x − 2)
+ 9
2
= −(x
− 4x + 4) + 9
2
= −x
+ 4x − 4 + 9
2
= −x
+ 4x + 5
2
b) The y-intercept is 5.
PTS: 1
DIF: Average
OBJ: Section 3.1
NAT: RF 3
TOP: Investigating Quadratic Functions in Vertex Form
KEY: vertex to standard form | vertex
2. ANS:
a) x = 12
b) (12, 18)
c) Domain: (−∞, ∞) Range: (−∞, 18]
PTS: 1
DIF: Easy
OBJ: Section 3.1
NAT: RF 3
TOP: Investigating Quadratic Functions in Vertex Form
KEY: axis of symmetry | domain | range | vertex
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