Find the domain and range of y = -x2 - 8x - 16

Domain: all real numbers and Range: y ≤ 0

What is the domain and range of y = 2x2 - 16x + 30

Domain: All Real Numbers and Range:y ≥ -2

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Intro to Quadratics Review

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Algebra I - quadratic basics #mrswatson #legacy

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Questions 15

Answers

1
Does y= -2x²+ 8x open up or down? Why?
Up because a<0
Down because a>0
Up because a>0
Down because a<0
2
What is the axis of symmetry of y = -x²+ 1
y = 1
(-1, 0) and (1, 0)
x = 0
(1, 0)
3
Does y = 3x²- 5 open up or down? Why?
Parabola
Opens Up because there is no "b"
Opens Up because a <0
Opens Up because a>0
4
Find the vertex y = -x²+ 10x - 21 and determine the minimum or maximum.
(5,4) Minimum Value at 5
(5,4) Maximum Value at 5
(5,4) Maximum Value at 4
(5,4) Minimum Value at 4
5
Find the roots of y = -x²- 8x - 16
(-4,0)
(0, -16)
(0, -4)
(-16, 0)
6
How many solutions does y = 3x²- 5 have?
2 Solutions
Zero
No Solution
1 Solution
7
Find the domain and range of y = -x²- 8x - 16
Domain and Range: all real numbers
Domain: all real numbers and Range: y ≤ 0
Domain: y ≤ 0 and Range: all real numbers
no solution
8
Find the axis of symmetry of y = x²+ 10x + 26
x=0
x=-5
no solution
x=1
9
What is the axis of symmetry of y = -x²+ 1
(-1, 0) and (1, 0)
y = 1
x = 0
(1, 0)
10
Find the vertex of y = 3x²- 5 and determine the maximum or minimum value.
(-5, 0) Maximum Value of 0
(0,-5) Minimum Value of -5
(0,-5) Maximum Value of -5
(-5, 0) Minimum Value of 0
11
How many solutions does y = -x²+ 2 x - 1 have?
(1, 0)
Two Solutions
No Solutions
One Solution
12
Find the zeros of y = -2x²+ 8x
x= 0 and x = 4
x = 2
2 solutions
(2, 8)
13
What is the domain and range of y = 2x²- 16x + 30
Domain: All Real Numbers and Range:y ≥ -2
Domain: All Real Numbers and Range: y ≤-2
No solution
Domain and Range: All Real Numbers
14
Find the vertex y = x²+ 10x + 26 and determine the maximum or minimum value.
(5,1) Minimum value at 5
(-5,1) Minimum value at -5
(-5,1) Maximum value at 1
(-5,1) Minimum value at 1
15
Find the solutions of y = -x²+ 1
(0, 1) and (-1, 0) and (1, 0)
(0, 1) and (1, 0)
(0, 1)
(-1,0) and (1,0)

Intro to Quadratics Review Flashcards | StudBud

Intro to Quadratics Review

15 termsStudBud Administration105 plays

Algebra I - quadratic basics #mrswatson #legacy

Flashcards15 cardsFPractice quizPHost liveL

Questions 15

Answers

1
Does y= -2x²+ 8x open up or down? Why?
Up because a<0
Down because a>0
Up because a>0
Down because a<0
2
What is the axis of symmetry of y = -x²+ 1
y = 1
(-1, 0) and (1, 0)
x = 0
(1, 0)
3
Does y = 3x²- 5 open up or down? Why?
Parabola
Opens Up because there is no "b"
Opens Up because a <0
Opens Up because a>0
4
Find the vertex y = -x²+ 10x - 21 and determine the minimum or maximum.
(5,4) Minimum Value at 5
(5,4) Maximum Value at 5
(5,4) Maximum Value at 4
(5,4) Minimum Value at 4
5
Find the roots of y = -x²- 8x - 16
(-4,0)
(0, -16)
(0, -4)
(-16, 0)
6
How many solutions does y = 3x²- 5 have?
2 Solutions
Zero
No Solution
1 Solution
7
Find the domain and range of y = -x²- 8x - 16
Domain and Range: all real numbers
Domain: all real numbers and Range: y ≤ 0
Domain: y ≤ 0 and Range: all real numbers
no solution
8
Find the axis of symmetry of y = x²+ 10x + 26
x=0
x=-5
no solution
x=1
9
What is the axis of symmetry of y = -x²+ 1
(-1, 0) and (1, 0)
y = 1
x = 0
(1, 0)
10
Find the vertex of y = 3x²- 5 and determine the maximum or minimum value.
(-5, 0) Maximum Value of 0
(0,-5) Minimum Value of -5
(0,-5) Maximum Value of -5
(-5, 0) Minimum Value of 0
11
How many solutions does y = -x²+ 2 x - 1 have?
(1, 0)
Two Solutions
No Solutions
One Solution
12
Find the zeros of y = -2x²+ 8x
x= 0 and x = 4
x = 2
2 solutions
(2, 8)
13
What is the domain and range of y = 2x²- 16x + 30
Domain: All Real Numbers and Range:y ≥ -2
Domain: All Real Numbers and Range: y ≤-2
No solution
Domain and Range: All Real Numbers
14
Find the vertex y = x²+ 10x + 26 and determine the maximum or minimum value.
(5,1) Minimum value at 5
(-5,1) Minimum value at -5
(-5,1) Maximum value at 1
(-5,1) Minimum value at 1
15
Find the solutions of y = -x²+ 1
(0, 1) and (-1, 0) and (1, 0)
(0, 1) and (1, 0)
(0, 1)
(-1,0) and (1,0)