Unit 4: Quadratics Vocabulary Review

What is the general form of a quadratic equation?

• ax² + bx + c = 0

• ax³ + bx + c = 0

• ax² + bx = 0

• ax + b = 0

What is the vertex form of a quadratic function?

• f(x) = ax² + bx + c

• f(x) = a(x-h)² + k

• f(x) = a(x-p)(x-q)

• f(x) = ax + b

What determines the direction of a parabola's opening?

• The value of b

• The value of c

• The sign of the coefficient a

• The value of the vertex

Tags

CCSS.HSF-IF.C.7A

What is the discriminant of a quadratic equation?

• b² - 4ac

• a² - 4bc

• c² - 4ab

• a² + b² + c²

Tags

CCSS.HSA-REI.B.4B

What does a discriminant of zero indicate about the roots?

• No real roots

• One real root (a repeated root)

• Two real and distinct roots

• Complex roots

Tags

CCSS.HSA-REI.B.4B

What is the method called for rewriting a quadratic expression in vertex form?

• Completing the Square

• Factoring

• Expanding

• Simplifying

What is the purpose of completing the square?

• To create a perfect square trinomial

• To find the x-intercepts

• To determine the axis of symmetry

• To calculate the discriminant

Tags

CCSS.HSA-REI.B.4B

What is the formula to solve quadratic equations?

Tags

CCSS.HSA-REI.B.4B

What is the minimum value of a quadratic function?

• The lowest point on the graph, occurring at the vertex if the parabola opens upward.

• The highest point on the graph, occurring at the vertex if the parabola opens downward.

• The point where the graph intersects the x-axis.

• The point where the graph intersects the y-axis.

What does the range of a quadratic function represent?

• All possible output values (y) of the function.

• All possible input values (x) of the function.

• The highest point on the graph.

• The lowest point on the graph.

Tags

CCSS.HSF-IF.C.7A