Unit 4 Review

Front

What are the x-intercepts of the function f(x)= (x - 2)(x + 3)?

Back

x = 2 or x = -3

Front

What is the y intercept for the equation: y = -8x^2 + 3x - 7?

Back

(0, -7)

Front

Which answer choice describes y = -3x^2 +7x - 2 accurately?

Back

opens down with a maximum

Front

What form is the equation in? y = 2x^2 - 8x + 7

Back

Standard

Front

What is the vertex of f(x) = 2(x - 5)^2 + 12?

Back

(5, 12)

Front

What is the definition of a quadratic function?

Back

A polynomial function of degree 2, typically in the form f(x) = ax^2 + bx + c.

Front

What does the vertex of a parabola represent?

Back

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

Front

How do you find the y-intercept of a quadratic function?

Back

Set x = 0 and solve for y.

Front

What is the axis of symmetry in a quadratic function?

Back

A vertical line that divides the parabola into two mirror-image halves, given by x = -b/(2a).

Front

What does it mean for a parabola to open upwards?

Back

The coefficient of x^2 (a) is positive, indicating the vertex is a minimum point.