Quadratic Functions Worksheet - Algebra 2, Part 1 Practice Test A
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5Algebra 2: Quadratic Functions Part 1 Practice Test A
Name_________________________________ Hr______
Objective 1: Modeling Quadratics
1. Determine whether the function is linear or quadratic. Identify the quadratic, linear, and constant terms.
a. linear function
b. quadratic function
c. quadratic function
d. linear function
linear term:
quadratic term:
quadratic term:
linear term:
constant term: –6
constant term: –6
linear term:
linear term:
constant term: –6
constant term: –6
2. Determine whether the function is linear or quadratic. Identify the quadratic, linear, and constant terms.
y = (x + 2)(6x – 6) – 6x
2
a. linear function
b. linear function
c. quadratic function
d. quadratic function
linear term:
linear term: 6x
quadratic term:
quadratic term:
constant term: 6
constant term: -12
linear term: 6x
linear term: 6x
constant term: -12
constant term: -12
(–2, –20), (0, –4), (4, –20)
3. Find a quadratic model for the set of values.
a.
b.
c.
d.
4. Find a quadratic model for the set of values. Predict the value of f(x) when x = 102.
–2
x
0
4
–3
f(x)
1
85
5. A biologist took a count of the number of migrating waterfowl at a particular lake, and recounted the lake’s
population of waterfowl on each of the next six weeks.
Week
0
1
2
3
4
5
6
Population
585
582
629
726
873
1,070 1,317
a.
Find a quadratic function that models the data as a function of x, the number of weeks.
b.
Use the model to estimate the number of waterfowl at the lake on week 8.
Algebra 2 Quadratic Functions Part 1 PTA
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