Unit 1 PreCalc Review

Which equation below is a quadratic function translated up 5 units?

• y = x² + 5
• y = (x + 5)²
• y = 5x²
• y = -x² - 5

Describe the transformation

• left 2 up 5
• right 2 up 5
• left 2 down 5
• right 2 down 5

Tell how the function transformed from y =|x|
y = -2|x|

• Translated left 2 units
• Reflected over x-axis
• Stretched vertically and reflected over x-axis
• Compressed vertically and reflected over the x-axis

What is the DOMAIN?

• (-∞, +∞)
• (-2, +∞)
• [-2, +∞)
• (-∞, 0) U (0, +∞)

What is the RANGE?

• (-∞, +∞)
• (-2, +∞)
• [-2, +∞)
• (-∞, 0) U (0, +∞)

Identify the domain.

Identify the range.

Identify the domain.

This piecewise function is a combination of at least how many functions?

• 0
• 1    
• 2
• 3