Application of Quadratics

A company graphed the revenue (profit) based on selling price of their item. What is the maximum amount of revenue they can earn?

• $0

• $31.80

• $62

• $2,528,100

When did the water reach its maximum height? Choose the key feature and the answer.

• x-value of vertex, 2 seconds

• y-value of vertex, 9 seconds

• y-intercept, 0 seconds

• x-intercept, 3.8 seconds

The math club launched a rocket and recorded its height and distance travelled. What was its maximum height?

• 4 feet

• 8 feet

• 10 feet

• 14 feet

The math club launched a rocket and recorded its height and distance travelled. How far did the rocket travel overall?

• 4 feet

• 8 feet

• 10 feet

• 14 feet

A ball is thrown vertically into the air. Its height in feet after t seconds is given by the equation h(t) = –5t² + 20t. How many feet into the air will the ball be at 3 seconds?

Mathematical Equivalence

OFF

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum 

240 ft

256 ft

265 ft

230 ft

• 240 ft

• 256 ft

• 265 ft

• 230 ft

A company graphed the revenue (profit) based on selling price of their item. What price would give them the greatest revenue?

• $0

• $31.80

• $62

• $2,528,100

An object flies through the air and follows a parabolic path. What does the y-axis represent? 

• time 

• height from the ground 

• horizontal distance 

• money 

When did the ball reach its maximum height? Choose the key feature and the answer.

• y-intercept, 3 secs

• x-value of the vertex, 4 secs

• y-value of the vertex, 5 secs

• y-intercept, 0 secs