Alg: Unit 4B Day 6 Quadratic Rate of Change

Draw

Somewhere in this image there is a bunny hiding. Where is it?

Multiple Choice

At what time would you reach the water if you jump of a cliff using the formula:

h = -16t² + 8t + 24?

(hint: use quadratic formula or demos)

• 8

• -1

• 1.5

• .25

Multiple Choice

Beyonce kicks a ball into the air while playing with Jay Z and their kids. The path of her ball can be found using the equation h = -16t²+ 64t, how high does the ball go?

• 0 feet

• 32 feet

• 64 feet

• 96 feet

Multiple Choice

Which of the following shows
f(x) = x² - 8x + 1
written in vertex form?

• f(x) = (x - 4)² - 15
• f(x) = (x - 4)² + 17
• f(x) = (x - 4)² - 17
• f(x) = (x - 4)² + 65

Multiple Choice

If given the equation y = 3(x + 5)² - 4, what is the vertex of the parabola?

• (5, -4)
• (-5, -4)
• (-15, -4)
• (15, -4)

Multiple Choice

Which of the following shows
f(x) = x² + 12x - 2
written in vertex form?

• f(x) = (x + 6)² + 142
• f(x) = (x + 6)² - 34
• f(x) = (x + 6)² - 38
• f(x) = (x + 6)² + 34

Multiple Choice

The area of a playground is 336 yd² . The width of the playground is 5 yards longer than its length. Find the length and width of the playground

•  length = 26 yd, width = 21 yd
• length = 21 yd, width = 26 yd 
• length = 21 yd, width = 16 yd 
• length = 16 yd, width = 21 yd

Multiple Choice

A rectangle has an area of 24 square units. The width is 5 units less than the length. What is the length, in units, of the rectangle? 

• 6
• 8
• 3
• 19

Match

Match the following

• Vertex

• Y Intercept

• X Intercept

• Decreasing

• Increasing

(2.5, -1)

(0, 2)

(1, 0) & (4, 0)

1 to 2.5

2.5 to 4

• (2.5, -1)

• (0, 2)

• (1, 0) & (4, 0)

• 1 to 2.5

• 2.5 to 4

Multiple Choice

What is the slope from -1 to 1?

Hint: use the rise/run

• m = -2

• m = 2

• m = 0

• m = -4

Multiple Choice

f(x) = 2x² + 12x + 16
What is the average rate of change of f(x) on the interval [-3, -2].

• 2
• 1/2
• -2
• -1/2

Match

Which function is quadratic?

• f(x)

• h(x)

• g(x)

Quadratic

linear

exponential

• Quadratic

• linear

• exponential

Multiple Choice

What function best models the data in the table?

• linear

• neither

• quadratic

Multiple Choice

Which company shows a greater rate of change?

Hint: Find the slope.

• Water's Edge Rafts
• Ryan's Rafts

Multiple Choice

What type of function is this?

• Linear

• Quadratic

• Neither

Multiple Choice

What type of function is this?

• Linear

• Neither

• Quadratic

Multiple Choice

The function displayed is _______________.

• Linear

• Exponential

• Quadratic

• None of these