Vocab
Identify the variables in the following algebraic expression: 7x + 2y - 2.3 + 9a
x, y, and a
Write an algebraic expression to model the following situation: 7 more than p
p + 7
Simplify the following expression: v + v + 5 - 2 + 3v
5v + 3
Evaluate the following expression if x=9:
3x - 16
11
The number that multiplies the variable is called a __________________.
coefficient
Identify the coefficients in the following algebraic expression: 9p + 2 + q - 1
9
Jim is j years old. Alex is 4 years younger than Jim. Using the variable j, describe Alex's age.
j-4
Simplify the following expression: 4k + 3j + 6 + k + 8j
5k+11j+6
Evaluate the following expression if z=12:
4 + 5z
64
Terms in an algebraic expressions are separated by what operation(s)?
addition and/or subtraction
Identify the constant term in the following algebraic expression: 2d + 9.2 + 12t
9.2
Write an algebraic expression to model the following situation: 17 less than k
k - 17
Simplify the following expression: 6+4d+14f-12f
4d+2f+6
Evaluate the following expression if r=18:
16 - (2/3)r - 4
0
like terms
How many terms are in the following algebraic expression: 9j + 4k - 7 + 2p - 7x
There are 5 terms.
Write an algebraic expression to model the following situation: twice a number, n
2n
Simplify the following expression: 3 + 8p + 3r + 4p + 6p + 1 - r
18p+2r+4
Evaluate the following expression if x=3:
(11+x)/2-(9x-7)/4
(11+(3))/2-(9(3)-7)/4
(14/2)-(27-7)/4
7-(20/4)
7-5
2
A ________________ is a number that does not change.
constant
What are the like terms in the following algebraic expression: 9j + 4k - 7k2 + 2p - 7x - k
4k and k
The quotient of 3 and an unknown amount.
3/n
Simplify the following expression: 17 + 15x - 10 - 12x
3x+7
Evaluate the following expression if y=7:
The sum of (21/y) and (4y/2)
(21/(7))+(4(7)/2)
3+(28/2)
3+14
17
Algebraic expressions must have what TWO things?
at least ONE variable and at least ONE operation.