Algebra
In the line given by y = x + 9, what is the slope?
A) 1 B) 9 C) 0 D) infinite
A) 1
What is the degree of 5x4 + 6x2 + x + 1?
4
If g(x) = 2x + 1, what is g(2)?
g(2) = 5
Which answer represents "x is 14 greater than y"?
A) x + 14 = y B) xy = 14
C) x = y + 14 D) x = 14 - y
C) x = y + 14
In the equation 10 = 2x + 2, solve for x.
A) x = 1 B) x = 4 C) x = 0 D) x = 2
B) x = 4
What are the solutions to (x - 4)(x + 3) = 0?
A) x = 4, -3 B) x = 12
C) x = -4, 3 D) x = 0
Let h(x) = 10. What is the range?
Which inequality represents "x is at least 4"?
A) x < 4 B) x > 4
C) x ≤ 4 D) x ≥ 4
D) x ≥ 4
Given:
y = 4x + 3
y = ax + 2
What is the value of a if the system has no solutions?
a = 4
Which is equivalent to (3x - 1) * x2 ?
A) 3x3 - 1 B) 3x3 - x2
C) x2 + 3x - 1 D) (3x - 1)2
B) 3x3 - x2
Let f(x) = 1/x. What is the domain?
x ≠ 0
Lee already owned 5 video games, and for his birthday, each of his friends gave him 2 more games. Which equation represents his total number of video games (v), if f is the number of friends?
A) v = 5 + 2f B) v = 2 + 5f
C) v = 5 D) (2)(5)f
A) v = 5 + 2f
Based on the equation 8ax - 6 = 30, what is the value of 4ax - 3?
A) 14 B) 15 C) 3 D) 10
B) 15
What are the solutions to |x + 1| = 4?
x = 3, -5
Let g(x) = f(x - 1). Find g(3) using the values of f below.
f(1) = 2, f(2) = 5, f(3) = 4
g(3) = 5
(Because g(3) = f(2))
Eric is four years younger than Margaret and five years older than Lindsey. Which of the following is an expression for Lindsey's age in years in terms of Margaret's age m?
A) m + 4 B) m - 5 C) m - 4 D) m - 9
D) m - 9
How many solutions does this system have:
y = 2x + 3
y - 3 = 2x
Infinitely many
Which is a solution to √(x) = x?
A) 2 B) 4 C) 1 D) 10
C) 1
Let f(x) = b*x. If f(2) = 4, what is f(3)?
f(3) = 6.
(b must equal 2)
Lisa and Marv go to the store. Lisa buys 3 chocolate bars for $6, and Marv buys 4 chocolate bars and 1 soda for $11. How much does a soda cost?
A) $1 B) $6 C) $3 D) $4
C) $3
(each chocolate bar is $2)