Algebra Practice Test
Questions Answered: 0/10
1.
Which function represents exponential decay?
f(x) = 2^x
f(x) = (1/2)^x
f(x) = -2^x
f(x) = x^2
2.
If a person invests $1000 at an interest rate of 5% per year, how much will they have after 2 years?
$1050
$1100
$1102.50
$1200
3.
What is the value of x in the equation: x^2 + 4x - 5 = 0
x = -5
x = -1
x = 1
x = 5
4.
Simplify: (3x^2y)(2xy^3)
5x^3y^4
6x^3y^4
5x^2y^3
6x^2y^3
5.
What is the inverse function of f(x) = 3x + 1?
f^(-1)(x) = x/3 - 1
f^(-1)(x) = (x-1)/3
f^(-1)(x) = 3x - 1
f^(-1)(x) = (x+1)/3
6.
What is the domain of f(x) = √(x - 3)?
x ≥ 3
x > 3
x ≤ 3
x < 3
7.
What is the value of y in the equation 2y + 5 = 11?
2
3
4
5
8.
Factor completely: x^3 - 8
(x-2)(x^2+2x+4)
(x+2)(x^2-2x+4)
(x+2)(x^2+2x+4)
(x-2)(x^2-2x+4)
9.
What is the value of y in the system of equations x + y = 4 and x - y = 2?
1
2
3
4
10.
What is the equation of the line that passes through the points (2,3) and (4,5)?
y = x + 1
y = x - 1
y = 2x - 1
y = 2x + 1
Questions Answered: 0/10
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