Vocab
Identify the variables in the following algebraic expression: +7x + 2y - 2.3 + 9a
x, y, and a
A "lonely" variable by itself has a coefficient of
1
How many terms? +v + v
2
What are the like terms
+ 3x - 16 + 5x
+3x and +5x
+16
Identify the coefficients in the following algebraic expression: 9p + 2 + q - 1
9
True or False
All constants are like terms
True
How many Terms? + 4k + 3j + 6
What are the like terms
+ 4 – 5z + 6z - 10
+ 4 and -10
-5z and +6z
Identify the constant term in the following algebraic expression: 2d + 9.2 + 12t
9.2
Terms are separated by
a subtraction or addition sign
How many terms? + 7x - 5x2 + 4d-3f+14f
5
What are the like terms
+5r + 7y - 6y + 4 + 11r + 5
+5r and + 11r
+7y and -6y
+4 and +5
What are the coefficients : 9j + 4k - 7 + p - 7x
9, 4, 1 and 7
What two things do you review to see if a term with a variable is a like term?
the variable and the power of the variable
How many terms? 3 + 8p + 3r - 4p + 6p + 1 - r
7
What are the like terms
+9j + 4x - 7 + 2x - 7x + 5x2
+9j
+4x, +2x, -7x
+5x2
-7
How many variables and constants are there
+ 17 + 15x - 10 - 12x - 6s + 7 - 8 + 76c - 9
Constants 5
Variables 4
What two things do we do to "prep" an algebraic expression?
add a "+" sign to the begining of the expression and a "1" before any "lonely" variables.
How many terms? + 17 + 15x - 10 - 12x - 6s + 7 - 8 + 76c - 9
9
What are the like terms
+5x2 + 7x - 2x2 + 9 - 2x + 5.5 + 7x - 6x
+5x2, -2x2
+7x, -2x, 7x, - 6x
9, 5.5