Answers Algebra III AQuadratic Functions: Factored Form

Quadratic Functions: Factored Form Answers

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

f(x) = –(x – 3)2

f(x) = (x + 8)2

f(x) = (x – 5)(x + 1)

f(x) = –(x – 1)(x – 5)

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?

They have the same vertex.

They have one x-intercept that is the same.

They have the same y-intercept.

They have the same range.

JeremiahLindsay✔ StephenAlexis

Jeremiah

Lindsay

✔ Stephen

Alexis

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

Answers:

Find the vertex::(2, –9)

Find the y-intercept::(0, –5)

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