Quadratics' Warm Up/Exit Ticket

Which expression describes the transformation from f(x) to f¹(x)?

• f(x+2)²+1

• -f(x-1)²+2

• -f(x-1)²-3

• -f(x-3)²+1

• Jonah correctly converted the function to vertex form. The ball's maximum height was 4 feet.

• Jonah correctly converted the function to vertex form. The ball's maximum height was 12 feet.

What is the value of the function when t = 3 and what is the meaning of this value?

• f(3)=384; after 384 seconds, Jason is 3 feet above the ocean.

• f(3)=1454; after 3 seconds, Jason is 1454 feet into the ocean.

• f(3)=384; after 3 seconds, Jason is 384 feet above the ocean.

• Jason jumped into the ocean 3 times.

The function h(t) = -16t(t-3) represents the height of a ball being kicked in the air, h(t), t seconds after it leaves the ground.

Which of the following represents the reasonable values of t for the function?

What is the average rate of change of this function from n = 150 to n = 400?

• (f(400) - f(150))/(400 - 150)

• (f(400) - f(150))/(150 - 400)
• (f(150) - f(400))/(400 - 150)
• (f(400) - f(150))/(400 + 150)

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

The graph shows the height, h(t), in meters, of an object after t seconds.

Which rate is the closest to the average rate of change in the height of the object from 1 to 2 seconds?

• -26 mps

• -18 mps

• 20 mps

• 18 mps

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

Factor:
x² + 5x - 24

• (x - 8)(x + 3)
• (x + 8)(x - 3)
• (x + 6)(x - 4)
• (x + 12)(x - 2)

3v² - 8v + 5

• (3v + 5)(v - 1)

• (3v - 5)(v + 1)

• (3v - 5)(v - 1)

• (3v + 5)(v + 1)

Factor the quadratic expression:

2b² + 17b + 21

• (b + 1)(b + 2)

• (b + 3)(b + 7)

• (2b + 3)(b + 7)

• (7b + 3)(2b + 1)