Unit 1A
7 - 3 x 2 + 6
7
Using the expression 5x - 2y + 7 + 11x + 3, list all of the coefficients.
5, -2, 11
List the domain and range of the following.
(3, 7) (8, 2) (9,3) (4, 5)
D: {3, 4, 8, 9}
R: {2, 3, 5, 7}
-36
4x - 1 = 3x + 2
x = 3
- |3| + |2|
-1
Simplify the following expression by combining like terms.
3n - 12 + 8n - 5
11n - 17
Lucas is scheduling hockey games for a tournament. The number of teams registered for the tournament dictactes how many games will take place.
Identify the independent and dependent variables.
Independent: # of teams
Dependent: # of games
8x - 9 = 23
4
8y - 9 = -3y + 2
y = 1
Determine which two integers the given square root is between √30
5 and 6
8 (3x - 5y)
24x - 40y
(0, -5) (0, 2) (7,3) (8, -1)
No, the x value of 0 is repeating.
4x - (8x + 2) = 6
-2
11x + 11 = 2(x - 8)
x = -3
Evaluate the expression if a=3, b= -4, and c= -5
b2 - 4ac
76
22k + (2 - 3k)5
7k + 10
Given f(x) = x2 - 4x, solve for f(3)
-3
A cable 66 feet long is cut into two pieces so that one piece is 12 feet longer. Find the length of each piece of cable.
27, 39
-3n + n - 5n = -36 + 2n
n = 4
Alex goes to the book fair where paperback books are $1.50 and hardback books are $3.00. Alex buys 4 paperback books and 3 hardback books. Write and solve an expression to see how much Alex owes.
$15
Basketball uniforms cost $12 for the jersey, $8 for the shorts, and $2 for the socks. How much do 11 uniforms cost?
242
Let f(x) = 9 - x
if the value of x increases by 2, describe the change in value of f(x).
Decreases by 2
The sum of 4 consecutive even integers is 84. Write an equation and solve to find the integers.
18, 20, 22, 24
12x + 6 + 6x = 8x - 14
x = -2