Completing the Square (Continued)

Question 1

When Nick checked his work it did not match the standard form function. Analyze Nick’s work. What was his mistake?

Revolt · Accepted Answer

In step 3, he did not subtract –7(9) to keep the function equivalent.

Question 2

The function written in vertex form is g(x) = [___] (x +11)2 + [___].

Revolt · Accepted Answer

Part 1: 4; Part 2: -484; 4(x + 11)^2 - 484

Question 3

(–3, –45), minimum(–3, 45), maximum(3, –45), minimum(3, 45), maximum

Revolt · Accepted Answer

(–3, –45), minimum

Question 4

x = –45x = –3x = 3x = 45

Revolt · Accepted Answer

= –3

Question 5

2346

Revolt · Accepted Answer

6; Selection 1: 6; Selection 2: 2; Selection 3: 3

Question 6

2 units down2 units up8 units up

Revolt · Accepted Answer

2 units down; Jennifer’s graph is vertically shifted from Matt’s graph.: 2 units down; Jennifer’s graph is horizontally shifted from Matt’s graph.: 0 units left or right; Jennifer’s graph is Matt’s graph.: the same shape as; Which graph has a vertex that is a maximum?: Neither Jennifer’s nor Matt’s

Completing the Square (Continued) Answers

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