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7.2 Introducing Proportional Relationships

I can use equivalent ratios to describe scaled copies of shapes.
I know that two recipes will taste the same if the ingredients are in equivalent ratios.

I can use a table to reason about two quantities that are in a proportional relationship.
I understand the terms proportional relationship and constant of proportionality.

I can find missing information in a proportional relationship using a table.
I can find the constant of proportionality from information given in a table.

I can write an equation of the form $y=kx$ to represent a proportional relationship described by a table or a story.
I can write the constant of proportionality as an entry in a table.

I can find two constants of proportionality for a proportional relationship.
I can write two equations representing a proportional relationship described by a table or story.

I can find missing information in a proportional relationship using the constant of proportionality.
I can relate all parts of an equation like $y = kx$ to the situation it represents.

I can decide if a relationship represented by a table could be proportional and when it is definitely not proportional.

I can decide if a relationship represented by an equation is proportional or not.

I can ask questions about a situation to determine whether two quantities are in a proportional relationship.
I can solve all kinds of problems involving proportional relationships.

I know that the graph of a proportional relationship lies on a line through $(0,0)$.

I can draw the graph of a proportional relationship given a single point on the graph (other than the origin).
I can find the constant of proportionality from a graph.
I understand the information given by graphs of proportional relationships that are made up of points or a line.

I can compare two, related proportional relationships based on their graphs.
I know that the steeper graph of two proportional relationships has a larger constant of proportionality.

I can interpret a graph of a proportional relationship using the situation.
I can write an equation representing a proportional relationship from a graph.

I can make connections between the graphs, tables, and equations of a proportional relationship.
I can use units to help me understand information about proportional relationships.

I can answer a question by representing a situation using proportional relationships.