Algebra STAAR Review

Front

What is the x-intercept of a graph?

Back

The x-intercept is the point where the graph crosses the x-axis, meaning the value of y is 0.

Front

How many zeros can a parabola have?

Back

A parabola can have 0, 1, or 2 zeros, depending on its position relative to the x-axis.

Tags

CCSS.HSF-IF.C.7A

Front

What does it mean if a parabola has a minimum value?

Back

A minimum value indicates the lowest point on the graph of the parabola, which occurs at the vertex.

Tags

CCSS.HSF-IF.C.7A

Front

What is the slope of parallel lines?

Back

Parallel lines have equal slopes.

Tags

CCSS.8.EE.B.5

Front

What is a horizontal stretch in a graph?

Back

A horizontal stretch occurs when the graph is stretched away from the y-axis, making it wider.

Front

What is the vertex of a parabola?

Back

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

Front

What is the standard form of a quadratic equation?

Back

The standard form is y = ax^2 + bx + c, where a, b, and c are constants.

Front

What does the 'a' value in a quadratic equation indicate?

Back

The 'a' value determines the direction of the parabola (upward if positive, downward if negative) and its width.

Tags

CCSS.HSF-IF.C.7A

Front

How do you find the axis of symmetry for a parabola?

Back

The axis of symmetry can be found using the formula x = -b/(2a) from the standard form of the quadratic equation.

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.