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Proportional Relationships - Coggle Diagram
Proportional Relationships
Graphs
Goes through the origin
4 different types of slope. Vertical slope. Horizontal slope. Positive Slope. Negative Slope
Y- axis and X- axis
If the line goes through the origin it’s linear if it does not it’s nonlinear
4 sections on a graph
Equations
Has an (=) sign
Written by two expressions connected by an equal sign
Consists of a variable
Find the like terms is your first step
Two step equations are done in two steps
Unit rates/rates/constant of proportionality
Constant of proportionality is another term for proportional relationships
K(the constant of proportionality) is y divided by x
Similar figures and scale drawings
Matching angles in similar figures are equal
Any two figures that have the same shape or similar
A scale drawing has exactly the same shape as the original object but usually has a different size
A drawing that shows a real object with accurate size is reduced by a certain amount is the “scale”
A rate is a comparison of two quantities which have different rates
A ratio is a comparison of two numbers
When calculating the unit rate you have to divide both numbers of the rate by the bottom number
