8th grade Math STAAR Practice Category 1 & 2

Front

What is a function in mathematics?

Back

A function is a relationship between a set of inputs and a set of possible outputs where each input is related to exactly one output.

Front

How do you represent a linear function?

Back

Front

What is scientific notation?

Back

Front

How do you convert a standard number to scientific notation?

Back

To convert to scientific notation, move the decimal point in the number until only one non-zero digit remains to the left of the decimal, and count the number of places moved to determine the exponent.

Front

What is the slope of a line?

Back

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

Front

What does it mean for y to be a function of x?

Back

It means that for every value of x, there is exactly one corresponding value of y.

Front

What is a linear relationship?

Back

A linear relationship is a relationship that can be graphically represented as a straight line, indicating a constant rate of change.

Front

How do you find the initial value in a linear function?

Back

The initial value is found at the y-intercept, which is the value of y when x = 0.

Front

What is the formula for calculating the volume of a rectangular prism?

Back

Front

What is the difference between independent and dependent variables?

Back

The independent variable is the one that is changed or controlled in an experiment, while the dependent variable is the one that is measured or affected.