Quadratics Worksheet Algebra 1 - Unit 8
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1
2
3
4Algebra 1 – Unit 8 – Quadratics
Name:_____________________________
Practice Test
Part I
Answer all the questions in this part. Each correct answer will receive 2 credits. No partial credit
will be allowed. For each question, write on the answer line the numeral preceding the word or
expression that best completes the statement or answers the question.
2
– 6x +8?
1. What are the roots of the parabola: y = x
_________
(1) 2 and 4
(2) -2 and -4
(3) 6 and -8
(4) -6 and 8
2
– 7x +9?
2. What is the y-intercept of the parabola: y = -2x
_________
(1) (0, -2)
(2) (0, -7)
(3) (0, 9)
(4) (0, 3.5)
2
– 6x + 10?
3. What is the equation of axis of symmetry of the parabola: y = x
_________
(1) x = -3
(2) y = 1
(3) x = 3
(4) y = -1
( )
= ax
+ bx + c represents the height of a rocket where t
4. The function h t
2
_________
is in seconds and h(t) is in feet. Which statement below must be true?
(3) b ≥ 0
(1) a < 0
(2) a > 0
(4) c < 0
5. Which equation below is a parabola with a minimum at (-2, 4)?
_________
(
)
(
)
2
2
(1) y = - x - 2
- 4
y = x - 2
- 4
(3)
(
)
(
)
2
2
(2) y = - x + 2
- 4
y = x + 2
+ 4
(4)
6. Which equation would have the same graph as y = 2x
- 8x +10 ?
2
_________
(
)
2
(3) y = 2 x - 8
+10
2
(1)
y
x
4
x
5
(
)
(
)
2
2
(2) y = 2 x - 8
- 54
(4) y = 2 x - 2
+ 2
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