Algebra 1 MP4 Review

An acrobat springs from a trampoline that is 2 feet off the floor with an initial upward velocity of 24 feet per second. What is the vertical motion model of this function?

• h=-16t²+2t+24

• h=-16t²+24t+2

• h=24t²+2t-16

• h=2t²+24t-16

A soccer ball is kicked from the ground is modeled by the function h=-16t²+54t, what is the height of the soccer ball 3 seconds after it has been kicked? (hint: plug t=3 in and find h).

• 18 feet

• 12 feet

• 6 feet

• it is on the ground

A diver is standing on a platform above the pool. He jumps form the platform with an initial upward velocity of 8 ft/s. Using the formula h = −16 t² + 8t + 24, how high was the diving platform?

• 0.25 ft

• 24 ft

• 25 ft

• 8 ft

A ball is thrown into the air with an upward velocity of 100 ft/s. Its height, h, after t seconds is given by the function h = -16t² + 64t + 960.When did the ball hit the ground?

• 10 seconds

• 5 seconds

• 2 seconds

• 7 seconds

If John drops a hammer from a 30 foot window, what is the correct vertical motion model to represent this situation?

Find the product: (4x+1)(5x−2)

• 20x² + 3x − 2

• 20x² − 11x + 5

• 20x² − 18x + 2

• 20x² − 3x − 2

A rectangle has width (2x + 3) and length (2x - 4).  What is the perimeter of the rectangle?

• 4x - 12

• 4x - 1

• 8x - 2

• 4x² - 2x - 12

Q. What is the y-intercept of this parabola?

• (−1, 3)

• (−3, 11)

• (−2, 5)

• (0, 5)

• 
• 
• 
• 

What is the vertex of the graph?

• (2, 4)

• (3, -1)

• (0, 8)

• (4, 2)