Unit 8 Quiz Review

The graph below shows h, the height i meters of a model rocket, versus t, the time in seconds after the rocket is launched. From the graph, what conclusion con be made about the flight of the rocket?

• The rocket reaches its maximum height after 2.5 seconds

• At 0 seconds the rocket was 2 meters off the ground

• The height of the rocket was 0 meters when it was launched

• The rocket was in flight for 5 seconds

Tags

CCSS.HSA.CED.A.2

CCSS.HSA.REI.D.10

CCSS.HSF.IF.B.4

CCSS.HSF.IF.C.7

The graph shows the height of a baseball from the time it is thrown from the top of a building to the time it hits the ground. How much time elapses while the baseball is 80 meters or more above the ground

• 1 sec

• 9 sec

• 7 sec

• 6 sec

Which statement best describes the graph below?

• The ball was dropped from a height of 18 feet and then reached a maximum height of 20 feet before reaching the ground.

• The ball was thrown from the ground and then reached a height of 18 feet before landing again in just under 2 seconds.

• The ball was dropped from a height of 18 feet and then descended for just under 2 seconds before it hit the ground.

• The ball was thrown from a height of 2 feet and then descended for 18 seconds before hitting the ground.

Create a Perfect Square Trinomial
x² + 6x + ____

• 6
• -6
• 9
• -9

Tags

CCSS.HSA-REI.B.4B

Create a Perfect Square Trinomial
x² + 18x + ____

• 81
• -18
• 9
• -9

Tags

CCSS.HSA-REI.B.4B

Write the following equation in vertex form by completing the square

x² + 6x = 5

• (x + 3)² = 5

• (x + 6)² = 9

• (x + 3)² = 14

• (x + 6)² = 14

Tags

CCSS.HSA-REI.B.4B

Write the following quadratic expression in vertex form...

x² + 4x + 10

• (x + 4)² + 6

• (x + 2)² + 6

• (x + 4)² - 6

• (x + 2)² - 6

Write the following quadratic expression in vertex form...

x² + 8x + 2

• (x + 4)² - 14

• (x + 4)² - 6

• (x + 4)² - 18

• (x + 4)² + 6

The equation for the axis of symmetry line is x = -b/(2a)

• true

• false

Tags

CCSS.HSA.REI.B.4

What is the axis of symmetry?

• the slope of the graph
• the dividing line for a parabola
• a way to spin my pencil
• the x-axis

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.IF.B.4