Algebra STAAR Review

Front

What is a parabola?

Back

A parabola is a symmetrical, curved shape that represents the graph of a quadratic function. It can open upwards or downwards.

Tags

CCSS.HSF-IF.C.7A

Front

What does it mean for a parabola to have zeros?

Back

Zeros of a parabola are the x-values where the graph intersects the x-axis. They represent the solutions to the equation when set to zero.

Tags

CCSS.HSF-IF.C.7A

Front

How many zeros can a parabola have?

Back

A parabola can have 0, 1, or 2 zeros.

Tags

CCSS.HSF-IF.C.7A

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 = ax² + bx + c, where a, b, and c are constants.

Front

What is the axis of symmetry in a parabola?

Back

The axis of symmetry is a vertical line that divides the parabola into two mirror-image halves, passing through the vertex.

Front

What is the significance of the 'a' value in a quadratic equation?

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

What is the quadratic formula?

Back

The quadratic formula is x = (-b ± √(b² - 4ac)) / (2a), used to find the zeros of a quadratic equation.

Tags

CCSS.HSA-REI.B.4B

Front

What is an exponential function?

Back

An exponential function is a mathematical function of the form y = ab^x, where 'a' is a constant, 'b' is the base, and 'x' is the exponent.

Front

How do you identify the number of zeros in a parabola graphically?

Back

Count the number of times the parabola intersects the x-axis.

Tags

CCSS.HSF-IF.C.7A