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Alg1 9.1 C4U
供稿人: DiLaura
9.1
Tell whether each function is a quadratic.
Type Y for yes and N for no
3x2 -2= y +10
y - 4x = x2 + 2
y = 3x - 2
7x - 2 = y - x2
x2 = y + 4
y = 2x - 3
9.1
Tell whether the coordinates can represent a 
quadratic function.
x
y
no, not a quadratic
yes, its a quadratic
-6
-5
-4
-6
-2
-4
0
0
9.1
Tell whether the coordinates can represent a 
quadratic function.
x
y
no, not a quadratic
yes, its a quadratic
0
-5
1
-5
2
-3
3
1
9.1
Tell whether the coordinates can represent a 
quadratic function.
x
y
no, not a quadratic
yes, its a quadratic
-2
4
0
0
2
4
4
16
9.1
Tell whether the coordinates can represent a 
quadratic function.
x
y
no, not a quadratic
yes, its a quadratic
-3
-4.5
-2
-2
-1
-.5
0
0
9.1
Tell whether the coordinates can represent a 
quadratic function.
x
y
no, not a quadratic
yes, its a quadratic
-3
10
-2
4
-1
2
0
0
9.1
y = -3x2
Tell if the quadratic function opens up or 
opens down.  
Type U for up and D for down
y = ½x2 - 4
y = x - x2 + 4
y = -⅔x2 + 10
y = -4 + x2
2
-2
4
-4
2
-2
4
-4
6
-6
9.1
Give the coordinates ofthe vertex.
give answer with
parentheses and a 
comma ex: (0,0)
vertex = 
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
9.1
Give the coordinates ofthe vertex.
give answer with
parentheses and a 
comma ex: (0,0)
vertex = 
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
9.1
Give the coordinates ofthe vertex.
give answer with
parentheses and a 
comma ex: (0,0)
vertex = 
2
-2
4
-4
6
-6
2
-2
4
-4
6
-6
8
-8
10
-10
9.1
Give the coordinates ofthe vertex.
give answer with
parentheses and a 
comma ex: (0,0)
vertex = 
2
-2
4
-4
2
-2
4
-4
6
-6
9.1
Give the coordinates ofthe vertex.
give answer with
parentheses and a 
comma ex: (0,0)
vertex = 
Find the domain 
and range of the 
quadratic
9.1
D: all reals > 0    R: all reals ≥ -1
D: all reals
    R: all reals
D: all reals    R: all reals ≥ -1
D: all reals     R: all reals ≤ -1
Find the domain 
and range of the 
quadratic
9.1
D: all reals     R: all reals ≤ 3
D: all reals
    R: all reals
D: all reals    R: all reals ≥ 3
D: all reals ≥ 3    R: all reals
Find the domain 
and range of the 
quadratic
9.1
D: all reals > 0    R: all reals ≥ 5
D: all reals
    R: all reals
D: all reals    R: all reals ≥ -5
D: all reals     R: all reals ≤ 5
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