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If the graph is a straight line through the origin, sloping upwards to the right, then it is a proportional linear relationship.

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10y ago

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How are using graphs equations and tables similar when distinguishing between proportional and nonproportional linear relationships?

Graphs, equations, and tables all provide ways to represent linear relationships, and they can be used to determine if a relationship is proportional or nonproportional. In a proportional relationship, the graph will show a straight line passing through the origin, the equation will have the form (y = kx) (where (k) is a constant), and the table will exhibit a constant ratio between (y) and (x). Conversely, a nonproportional relationship will show a line that does not pass through the origin, have an equation in a different form (like (y = mx + b) with (b \neq 0)), and display varying ratios in the table.


Is it true that the graph of a proportional relationship does not include the origin?

It is true in the case of inversely proportional relationship.


How can you tell from the graph of Molly's garden on the previous slide that it represents a proportional relationship?

The graph of a proportional relationship has the same unit rate, is a straight line, and starts at the origin.


How do you know if a graph is proportional?

It is a graph of a proportional relationship if it is either: a straight lie through the origin, ora rectangular hyperbola.


How can you know if a graph represents a proportional relationship?

It is a relationship of direct proportion if and only if the graph is a straight line which passes through the origin. It is an inverse proportional relationship if the graph is a rectangular hyperbola. A typical example of an inverse proportions is the relationship between speed and the time taken for a journey.


Does a graph with a proportional relationship always intersect at the origin?

Yes.


How do you tell if a graph is not proportional?

A graph is not proportional if the relationship between the two variables does not pass through the origin (0,0) or if it does not maintain a constant ratio between the two variables. In a proportional relationship, the line graphed will be straight and through the origin, indicating that as one variable increases, the other increases at a consistent rate. If the graph shows curvature or if the line is not straight, it indicates a non-proportional relationship.


What is the relationship among proportional relationships lines rates of change and slope?

For each of the following relationships, graph the proportional relationship between the two quantities, write the equation representing the relationship, and describe how the unit rate, or slope is represented on the graph.


HOW can you tell FROm A graph If Relationship is proportional?

A relationship is proportional if the graph is a straight line that passes through the origin (0,0). This indicates that as one variable increases, the other variable increases at a constant rate. Additionally, the slope of the line should remain consistent, reflecting a constant ratio between the two variables. If the graph deviates from this pattern, the relationship is not proportional.


How do you know a graph shows a proportional relationship?

A graph shows a proportional relationship if it is a straight line that passes through the origin (0,0). This indicates that as one variable increases, the other variable increases at a constant rate. Additionally, the ratio of the two variables remains constant throughout the graph. If the line is not straight or does not pass through the origin, the relationship is not proportional.


How do you graph a proportional relationship?

It can be either a straight line through the origin or a hyperbola.


Why the relationship represent by the table is proportional?

A relationship represented by a table is considered proportional if the ratio between the values of the two quantities remains constant. This means that for every increase in one quantity, there is a corresponding consistent increase in the other, maintaining the same ratio. In a proportional relationship, if you divide one quantity by the other, the result will always yield the same constant value. Additionally, the graph of a proportional relationship will always be a straight line that passes through the origin (0,0).