PC Practice Flashcard - Sec 1.5 - 1.8

Front

What is the domain of the Quadratic Parent Function?

Back

(-∞, ∞)

Front

What does the function f(-2) represent if f(x) = 3x^2 + 7x?

Back

4

Front

What is the result of (f - g)(x) if f(x) = 3x^2 + 7x and g(x) = 2x^2 - x - 1?

Back

x^2 + 8x + 1

Front

Describe the transformation of the function 3h(x).

Back

Vertically Stretched by a factor of 3

Front

What is the general form of a quadratic function?

Back

f(x) = ax^2 + bx + c, where a ≠ 0

Front

What is the vertex of a quadratic function in standard form?

Back

The vertex is the point (h, k) in the vertex form f(x) = a(x - h)^2 + k.

Front

What is the axis of symmetry for a quadratic function?

Back

The axis of symmetry is the vertical line x = -b/(2a) for the function f(x) = ax^2 + bx + c.

Front

What does it mean for a function to be vertically stretched?

Back

A function is vertically stretched when its output values are multiplied by a factor greater than 1.

Front

What is the effect of a negative coefficient in front of a quadratic function?

Back

It reflects the graph across the x-axis.

Front

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

Back

Set f(x) = 0 and solve for x.