Algebra 1 STAAR EOC Practice (Basic Knowledge)

Front

What is a zero of a function?

Back

A zero of a function is a value of x that makes the function equal to zero. It corresponds to the x-intercept of the graph.

Front

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

Back

The y-intercept is the point where the graph intersects the y-axis, indicating the value of y when x is zero.

Front

What is an exponential function?

Back

An exponential function is a mathematical function of the form y = a(b^x), where b is a positive constant and x is the exponent.

Front

How can you determine if a relation is a function?

Back

A relation is a function if each input (x-value) corresponds to exactly one output (y-value). No x-values can repeat.

Front

What does a negative slope indicate about a line on a graph?

Back

A negative slope indicates that as x increases, y decreases, resulting in a line that descends from left to right.

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 is non-negative.

Front

What is the vertex of 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

What is the difference between a linear function 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

What does it mean for a graph to be increasing?

Back

A graph is increasing when the y-values rise as the x-values increase, resulting in an upward slope.

Front

What is the formula for the slope of a line?

Back

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