Quadratic Functions Vocabulary

Front

What is the name of this form: y = ax² + bx + c?

Back

Standard form

Front

The axis of symmetry line passes through which point?

Back

Vertex

Front

What is the domain of the graph of a quadratic function?

Back

All real numbers

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

Front

What is the range of the graph of a quadratic function?

Back

y ≥ -1

Tags

CCSS.HSF-IF.C.7A

Front

True or false: The solution, root, x-intercept, and zero of a problem are all the same thing.

Back

True

Front

What is the vertex of a quadratic function?

Back

The highest or lowest point on the graph, depending on the direction of the parabola.

Front

What does the 'a' in the standard form of a quadratic function (y = ax² + bx + c) represent?

Back

The coefficient that determines the direction and width of the parabola.

Tags

CCSS.HSF-IF.C.7A

Front

What is the significance of the y-intercept in a quadratic function?

Back

It is the point where the graph intersects the y-axis, found by evaluating the function at x = 0.

Tags

CCSS.HSF-IF.C.7A

Front

How do you find the x-intercepts of a quadratic function?

Back

By setting y = 0 and solving the equation ax² + bx + c = 0.

Tags

CCSS.HSF-IF.C.7A

Front

What is the effect of a negative 'a' value in a quadratic function?

Back

It causes the parabola to open downwards.