Math III EOC Review #4

Front

What is a system of equations?

Back

A system of equations is a set of two or more equations with the same variables. The solution is the point(s) where the equations intersect.

Front

How do you represent a word problem as a system of equations?

Back

Identify the variables, translate the problem into equations based on relationships described, and ensure the equations represent the same scenario.

Front

What is the method to solve a system of linear equations?

Back

Common methods include substitution, elimination, and graphing.

Front

What does it mean to find the confidence interval?

Back

A confidence interval estimates the range within which a population parameter lies, based on sample data.

Front

What is the formula for a confidence interval for the mean?

Back

CI = x̄ ± z*(σ/√n), where x̄ is the sample mean, z is the z-score, σ is the standard deviation, and n is the sample size.

Front

What is end behavior in polynomial functions?

Back

End behavior describes how the values of a function behave as the input approaches positive or negative infinity.

Front

What does the leading coefficient of a polynomial determine?

Back

The leading coefficient determines the direction of the end behavior of the polynomial function.

Front

What is the standard deviation?

Back

Standard deviation is a measure of the amount of variation or dispersion in a set of values.

Front

How do you calculate the average (mean)?

Back

The average is calculated by summing all values and dividing by the number of values.

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=0.