Gr8 Math STAAR Review

Front

What is the rate of change in a linear function?

Back

The rate of change is the slope of the line, which represents how much the y-value changes for a unit change in the x-value.

Front

What defines a function in mathematics?

Back

A relation is a function if each x-value has exactly one corresponding y-value.

Front

What is a proportional relationship?

Back

A proportional relationship is one where two quantities maintain a constant ratio, meaning they can be expressed as y = kx, where k is a constant.

Front

How do you determine if a set of numbers is in order from least to greatest?

Back

You compare each number and arrange them starting from the smallest to the largest.

Front

What does it mean if a relationship is proportional?

Back

It means that as one quantity increases, the other quantity increases at a constant rate.

Front

What is the slope of a line?

Back

The slope is a measure of the steepness of the line, calculated as the rise over run (change in y over change in x).

Front

What is a non-linear relationship?

Back

A non-linear relationship is one where the rate of change is not constant, and the graph does not form a straight line.

Front

How can you identify a function from a set of ordered pairs?

Back

Check if any x-value is paired with more than one y-value; if so, it is not a function.

Front

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

Back

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

Front

What is an example of a proportional relationship in real life?

Back

An example is the relationship between distance and time when traveling at a constant speed.