REVIEW 4.3

Based on the table, which function can best be used to model this situation?

• h(t) = 99t² + 858

• h(t) = -4.9t² + 295t + 0.6

• h(t) = -4.9t² + 295t + 2

• h(t) = 99t² + 1,470.3

Which of the following quadratic equations best represents the following data?

• y = 7x² - 3x

• y = 3x² - 2x + 1

• y = 6x² + 3x - 2

• y = 7x² - 3x + 1

Which of the following quadratic equations best represents the following data?

• y = 4x² + 1

• y = 3x² + 8x - 3

• y = 4x²

• y = 3x² + 3x - 1

The table below gives the number of hours spent studying for a math exam (x) and the exam grade (y). Using a quadratic equation, predict the exam grade of a student who studied 5 hours.

Find the height of the ball when it traveled a distance of 10 feet.

• 12.8 ft
• 13.3 ft
• 11.1 ft
• 17 ft

What is the vertex of the quadratic function:
y = x² - 6x + 11?

• (3,2)
• (-3,-2)
• (-3,2)
• (3,-2)

What is the vertex?

• (5,2)
• (2,5)
• (-2,5)
• (-5,2)

A diver is standing on a platform above the pool. He jumps form the platform with an initial upward velocity of 8 ft/s. Use the formula: h(t) = −16 t² + 8t + 24

How high is the platform?

• .25 ft

• 24 ft

• 25 ft

• 8 ft

• (0, -6)

• (0, -5)

• (0, 6)

• (0, 5)

Identify all x-intercept(s).

 $y=\left(x-2\right)\left(x-3\right)$  

• (2,0) and (3,0)

• (-2, 0) and (-3, 0)

• (0, 6)

• (0, -6)