Quadratic Functions: Factored Form

Question 1

Which point is an x-intercept of the quadratic function f(x) = (x – 4)(x + 2)?

Revolt · Accepted Answer

(–2, 0)

Question 2

The graph of the function f(x) = –(x + 1)2 is shown. Use the drop-down menus to describe the key aspects of the function.

Revolt · Accepted Answer

✔ maximum value; The vertex is the .: maximum value; The function is positive .: for no values of x; The function is decreasing .: when x > –1; The domain of the function is .: all real numbers; The range of the function is .: all numbers less than or equal to 0

Question 3

([___],[___])

Revolt · Accepted Answer

Part 1: 54486; Part 2: 54487; 5

Question 4

JeremiahLindsayStephenAlexis

Revolt · Accepted Answer

Stephen

Question 5

Graph the function f(x) = (x + 1)(x – 5). Use the drop-down menus to complete the steps needed to graph the function.

Revolt · Accepted Answer

✔ (2, –9); Find the vertex:: (2, –9); Find the y-intercept:: (0, –5)

Question 6

Which function has a vertex at (2, –9)?

Revolt · Accepted Answer

f(x) = (x – 5)(x + 1)

Question 7

Zander was given two functions: the one represented by the graph and the function f(x) = (x + 4)2. What can he conclude about the two functions?

Revolt · Accepted Answer

They have the same y-intercept.

Quadratic Functions: Factored Form Answers

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