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Algebra 1 Unit 3
Test Description: 7.5,7.6,7.7 inserts
Instructions: Answer all questions to get your test result.
1) If g(x) = 3x^2 - 4x^0 + 10, then what is g(-2)
A
18
B
22
C
-2
D
-6
2) If f(x) = -2x and g(x) = 3x^2, what is the value of f(3) + g(-2)?
A
1
B
6
C
-18
D
18
3) Attendance is decreasing by 0.8% each year. If the population is currently 2000 people, what will it be in 5 years?
A
1318
B
1921
C
1840
D
1600
4) What is the domain of y = x^2
A
y is greater than or equal to zero.
B
x is greater than or equal to zero.
C
All real numbers
D
Definitely this one.
5) What is the range of y = x^2
A
Click it...do it.
B
y is greater than or equal to zero.
C
All real numbers
D
x is greater than or equal to zero.
6) If g(x) is a function that represents the cost x of pairs of sunglasses, write an equation that shows 4 pairs of sunglasses is cost $112.
A
g (x) = 112
B
g(112) = 4
C
g(x) = 4
D
g(4) = 112
7) A company earned a profit of $40,000 this year. In future years, the profit will increase by 1.8% per year. Write a function for the company's profit.
A
40000(1.018)^t
B
40000(1.18)^t
C
40000(.18)^t
D
40000(.018)^t
8) What is the y-intercept of f(x) = 5(2)^x?
A
2
B
A billion
C
5
D
Boaty McBoatface
9) What is the growth rate of f(x) = 5(2)^x?
A
2
B
A billion
C
5
D
Boaty McBoatface
10) Is the set of points a function? Why or why not? (-2, 3) (2, 3) (-4, -3)
A
No, x repeats.
B
Yes, y does not repeat.
C
No, y repeats
D
Yes, x does not repeat.
11) Write an equation to describe f(x) = 4x after translating up 3.
A
4x - 3
B
4(x + 3)
C
4(x - 3)
D
4x + 3
12) Write an equation to describe f(x) = 4x after translating left 3.
A
4(x - 3)
B
4(x + 3)
C
4x + 3
D
4x - 3
13) Is the sequence arithmetic or geometric, and what is the pattern? -5, -10, -15, -20
A
Geometric, 2
B
Geometric, -5
C
Arithmetic, 2
D
Arithmetic, -5
14) Is the sequence arithmetic or geometric, and what is the pattern? 4, 12, 36, 108
A
Geometric, 3
B
Geometric, 8
C
Arithmetic, 8
D
Arithmetic, 3
15) The image of f(x) is translated right 5 to get g(x). Write a rule for g(x).
A
f(x) - 5
B
f(x + 5)
C
f(x - 5)
D
f(x) + 5
16) The image of f(x) is translated left 3 to get g(x). Write a rule for g(x).
A
(x, y): (x, y - 3)
B
(x, y): (x + 3, y)
C
(x, y): (x - 3, y)
D
(x, y): (x, y + 3)
17) Over what interval is f(x) = x^2 increasing?
A
x is greater than or equal to 0.
B
y is greater than or equal to 0.
C
x is less than or equal to 0
D
It doesn't increase. This questions is stupid.
18) What is the value of x in the sequence? -2.1, 2.2, -2.3, x, -2.5
A
Seriously?!? Think harder.
B
-2.4
C
2.4
D
You're wrong.
19) What beverage does Mrs. Klein strongly dislike?
A
Milk
B
Soda
C
Coffee
D
Juice
*select an answer for all questions
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