Algebra 2 Unit 2 Review

• A

• B

• C

• D

Factor:

4x² + 26x + 30

• (2x + 1)(x + 15)

• (x + 4)(x + 30)

• (2x + 3)(2x + 10)

• 2(2x + 3)(x + 5)

Solve 𝑥² = 5𝑥 − 10

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• A

• B

• C

• D

This is an example of:

(a)  

• Exponential Growth

• Linear Growth

• Linear Decay

• Exponential Decay

Heather dropped a water balloon over the side of her school building from a height of 80 feet. The approximate height of the balloon at any point during its fall can be represented by the following quadratic equation:

h = -16t² + 80

About how long did it take for the balloon to reach a height of 30 feet?

• 1.77 seconds

• 2.24 seconds

• 2.45 seconds

• 2.83 seconds

Where is the mistake in the process of completing the square to solve x² - 8x + 4 = 0?

• Step 1

• Step 2

• Step 3

• Step 4

• y < x² - 4x + 4

• y ≤ x² + 4x + 4

• y ≥ x² + 4x + 4

• y > x² - 4x + 4

The table of value represents a quadratic function. Which of the following functions yields the same minimum or maximum value as the table?

• f(x) = -x² + 4

• f(x) = x²+4x+4

• f(x) = 3x² - 5

• f(x) = -x² + 8

Determine the domain and range of the function

• Domain: All real numbers, Range: All real numbers

• Domain: x ≥ -4, Range: All real numbers

• Domain: All real numbers, Range: y ≥ -4

• Domain: -1 ≤ x ≤ 5, Range: y ≥ -4