STAAR Algebra 1 Practice Assessment

Front

What is a transformation in the context of functions?

Back

A transformation refers to the alteration of a function's graph, which can include translations, reflections, stretches, and compressions.

Front

What does it mean for two graphs to be parallel?

Back

Two graphs are parallel if they have the same slope but different y-intercepts, meaning they will never intersect.

Front

What is the rate of change in a linear function?

Back

The rate of change is the ratio of the change in the dependent variable to the change in the independent variable, often represented as the slope of the line.

Front

How do you find the zeros of a quadratic function?

Back

The zeros of a quadratic function can be found by setting the function equal to zero and solving for the variable, often using factoring, completing the square, or the quadratic formula.

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, and A should be non-negative.

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

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

Back

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

Front

What is a linear function?

Back

A linear function is a function that graphs to a straight line, characterized by a constant rate of change.

Front

What is the significance of the vertex in a quadratic function?

Back

The vertex is the highest or lowest point on the graph of a quadratic function, depending on the direction of the parabola.

Front

How do you interpret the slope of a line in a real-world context?

Back

The slope represents the rate of change between two variables, indicating how much one variable changes for a unit change in another variable.