Real Numbers/Stats
What is the definition of integers?
Positive and negative whole numbers
What is the difference between expressions and equations?
an equation has an equal sign
What are inverse operations?
the opposite operation
What is slope?
rise/run
How do we find the formula of a square and rectangle?
length times width
What is the definition of mean?
where you add everything and divide by how many numbers you have
Simplify the following expression:
9x - 7x + 3
2x + 3
Solve the following equation:
3x = 21
x = 7
How do you write an ordered pair?
(x,y)
How do we find the area of a triangle?
base times height, divided by 2
What is the definition of mode?
the most occurring number
Simplify the following expression:
3x + 12 - 2x + 11
1x + 23
Solve the following equation:
4x + 6 = 26
x = 5
What are the four types of slope?
positive, negative, zero, undefined
How do we find the radius of a circle when given the diameter?
divide it by 2
When we subtract a negative, what happens?
it becomes a positive
Simplify the following expression:
4x + 48 + 8x - 16
12x + 32
Solve the following equation:
8x - 4 + 3x = 24
x= 2.55
What is the formula we use to find the slope between two points?
y2-y1/x2-x1
How do we find the volume of a rectangular prism?
l x w x h
Find the median of the following set of data:
3, 8, 2, 1, 9
3
Simplify the following expression:
-6x + 60 - 21x - 28
-27x + 32
What are the four steps we take for solving a multi-step equation?
distribute, combine like terms, seclude the variable, solve
What is domain and range?
domain: x-values
Range: y-values
What is the formula to find the volume of a cylinder?
3.14 x r2 x h