State Test Flashcards
Constant of Proportionality/Unit Rate in a Graph
at the point (1, r)
May need to calculate (1, r) by looking at another point that meets a y line
Constant of Proportionality/Unit Rate in a Table
Divide y by x
Proportional in a Table
Divide all y by x and keep getting the same number
Proportional in a graph
Straight line through the origin
When working with ratios, I should always find
the unit rate
Unit rate is when ____ = _____
x = 1
How do you do the Distributive Property
5(x-3)
Multiply all numbers outside to only the numbers inside
Combine Like Terms
Think about Signs and Terms
-3x-5x+7-8
Need to have the same variable and exponent
Take the sign in front
How to solve inequalities
Solve like Equations
But when divide by a negative number, flip the sign
How do you know if an inequality is open or closed circle?
Open if there is no line underneath the sign
Closed if there is a line underneath the sign
How to solve equations
Inverse operations using opposite of PEMDAS
Mean/Average
Add all the numbers together, then divide by the total amount of numbers
Mode
the number that means the most
Median
The middle number after you put the numbers in order
If there are two numbers left, then you find the mean of the two
Range
Biggest number minus the smallest number