Units 1-4 Review

Front

What is the vertex of the quadratic function f(x) = x² + 4x + 3?

Back

The vertex is (-2, -1).

Front

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

Back

Set x = 0 in the function and solve for f(0).

Tags

CCSS.HSF-IF.C.7A

Front

What is the profit function for a theater group that charges $12.50 per ticket and has production costs of $150?

Back

f(x) = 12.50x - 150.

Tags

CCSS.HSF.LE.A.2

CCSS.8.F.B.4

Front

What does the area of a rectangle represent in terms of its length and width?

Back

Area = Length × Width.

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

Front

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

Back

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

Tags

CCSS.HSF-IF.C.8A

CCSS.HSA-SSE.B.3B

Front

What is the area of a rectangle with length (6x - 2) and width (x - 1)?

Back

Area = 6x² - 8x + 2.

Tags

CCSS.HSA.APR.A.1

Front

What is a system of inequalities?

Back

A set of inequalities that describe a region in the coordinate plane.

Tags

CCSS.HSA.REI.D.12

Front

How do you graph a quadratic function?

Back

Identify the vertex, axis of symmetry, and intercepts, then plot points.

Tags

CCSS.HSF-IF.C.7A

Front

What is the significance of the discriminant in a quadratic equation?

Back

It determines the number and type of roots (real or complex).

Tags

CCSS.HSA-REI.B.4B

Front

What is the standard form of a quadratic function?

Back

f(x) = ax² + bx + c.