Algebra I Regents Review Task #1

Front

What is the definition of an x-intercept?

Back

An x-intercept is the point where a graph intersects the x-axis, meaning the value of y is zero.

Front

How do you find the x-intercepts of a quadratic equation?

Back

To find the x-intercepts of a quadratic equation, set the equation equal to zero and solve for x.

Front

What does a correlation coefficient indicate?

Back

A correlation coefficient indicates the strength and direction of a linear relationship between two variables.

Front

What is the range of possible values for a correlation coefficient?

Back

The range of possible values for a correlation coefficient is from -1 to 1.

Front

What does a correlation coefficient of -0.84 signify?

Back

A correlation coefficient of -0.84 signifies a strong negative linear relationship between the two variables.

Front

What is the formula for the slope of a line?

Back

The formula for the slope (m) of a line is m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line.

Front

What is the standard form of a linear equation?

Back

The standard form of a linear equation is Ax + By = C, where A, B, and C are integers.

Front

What is the difference between a linear and a quadratic function?

Back

A linear function has a constant rate of change and graphs as a straight line, while a quadratic function has a variable rate of change and graphs as a parabola.

Front

How do you determine if a function is linear?

Back

A function is linear if it can be expressed in the form y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the vertex of a parabola?

Back

The vertex of a parabola is the highest or lowest point on the graph, depending on its orientation.