STAAR Review - 9

Front

What is an ordered pair in the context of solving equations?

Back

An ordered pair is a pair of numbers used to represent a point in a coordinate system, typically written as (x, y). It is used to find solutions to equations by substituting the values into the equations.

Front

How do you solve for a variable in an equation?

Back

To solve for a variable, isolate the variable on one side of the equation using inverse operations (addition, subtraction, multiplication, division) to maintain equality.

Front

What does a scatterplot represent?

Back

A scatterplot is a graphical representation of two variables, showing the relationship between them. Each point on the plot represents an observation.

Front

What is the purpose of making predictions based on a scatterplot?

Back

Making predictions based on a scatterplot helps estimate the value of one variable based on the value of another, using the trend shown in the data.

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Front

What does it mean for an ordered pair to be a solution to a system of equations?

Back

An ordered pair is a solution to a system of equations if it satisfies all equations in the system when substituted into them.

Front

How do you interpret the slope of a line in a scatterplot?

Back

The slope of a line in a scatterplot indicates the rate of change between the two variables. A positive slope means that as one variable increases, the other also increases.

Front

What is the significance of the y-intercept in a linear equation?

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The y-intercept is the point where the line crosses the y-axis, representing the value of the dependent variable when the independent variable is zero.

Front

How can you determine the best prediction from a scatterplot?

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To determine the best prediction, look for the point on the trend line that corresponds to the given value of the independent variable.

Front

What is the formula for finding the average rate of change between two points on a graph?

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