Vocabulary
In the expression 2x + 3y - 7 has how many terms?
3 terms
Select the like terms from the terms below:
2x2 , 3xy, -2x3 , -2yx, 2x1
Like terms are 3xy and -2yx
Write the following in algebraic form:
Sum of x and 3 gives 5
x + 3 = 5
Evaluate b2 If b = 5
= 25
Find the two numbers that multiply to give -20 and add to give -8
= -10 and 2
If there are 3 apples and you take 2 away how many do you have?
2
A letter used to represent an unknown is called a ..
variable
Simplify this expression:
10f - 8f + 2 + 10
= 2f + 12
Write the following in algenraic form:
4 added to 2 multiplied by b is equal to 8
2b + 4 = 8
Evaluate 21 - z If z = 10
= 11
Simplify this expression:
3(4b ) + 2
= 12b + 2
If two lines are parallel, their slopes are ___________ .
Equal - The same Slope
The number attached to a variable is called a.....
Coefficient
Simplify the following expression
12n - 8 - 2n + 10 - 4
= 10n -2
Write the following in algebraic form:
4 multiplied by the sum of y and 7
4(y + 7)
IF q = 3 evaluate 2q/3 + 4
= 6
Find the two numbers which multiply to give 21 and add to give 10
Numbers are 7 and 3
How many months of the year have 28 days?
All of them
A combination of coefficients, variables and constants including the operational signs is called ......
An expression
3x2 - 4xy + 4x2 + 3xy
= 7x2 - xy
Write the following in algebraic form:
Twice b added to c is 11
2c + c = 11
What is a2 + b - 5 If a = 5 and b = 3
= 23
Find the two numbers that multiply to give 20 and add to give -9
= -4 and -5
Perpendicular lines have slopes that are O______ R_______ of one another.
Opposite Reciprocals
2ab, -3ab and 4ba are all
Like Terms
a2 - b2 + 2b2 + c2 - 2c2 - a2
= b2 - c2
Write the following in Algebraic Form:
8 divides the total of 6 added to 3 times f
(3f + 6)/8
Evaluate 2gh2 +7 If g = 3 and h = 10
= 600
Find two numbers that multiply to give -18 and add to give 3
= 6 and -3
Replacing a variable with a given value that is equal to that variable. EX: Solve x-7 when x=10
Substitution