Coordinate Algebra EOC Released Items

Front

What is a linear regression model?

Back

A linear regression model is a statistical method used to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.

Front

How do you interpret the slope in a linear regression equation?

Back

The slope indicates the change in the dependent variable for each one-unit increase in the independent variable.

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept is the value of the dependent variable when the independent variable is zero.

Front

What is the general form of a linear equation?

Back

The general form of a linear equation is y = mx + b, where m is the slope and b is the y-intercept.

Front

What does it mean for two functions to intersect?

Back

Two functions intersect at points where their outputs (y-values) are equal for the same input (x-value).

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions and shows that one is greater than, less than, or not equal to the other.

Front

How do you graph the inequality x > 3y - 2?

Back

To graph the inequality, first graph the line x = 3y - 2 as a dashed line, then shade the region where x is greater than the line.

Front

What is the perimeter of a rectangle?

Back

The perimeter of a rectangle is calculated as P = 2(length + width).

Front

How do you express the perimeter of a rectangle in terms of a variable x when dimensions are expanded?

Back

If the dimensions are expanded by x meters, the new perimeter can be expressed as P = 2(length + x + width + x) = 2(length + width + 2x).

Front

What is the formula for the perimeter of a rectangle with width w and length l?

Back

The formula for the perimeter is P = 2(w + l).