Quadratic Functions

There are two times that they rocket will be at sea level.

Enter the first time the rocket is at sea level.

What was the height of the water at 3 seconds?

• 9 feet

• 10 feet

• 7 feet

• 5 feet

When you throw a basketball through the air, the path it follows is a parabola. The parabola opens...

• UP

• DOWN

Tags

CCSS.HSF-IF.C.7A

The following graph displays the HEIGHT of a projectile as a function of TIME. h (t)

**What is the RANGE of the parabola?

Tags

CCSS.HSF-IF.C.7A

Function h can be used to model the height in feet of a rocket from the ground t seconds after it was launched. What was the range of its trajectory?

• 0 < y < 225

• 0 < x < 7.5

• 0 ≤ y ≤ 225

• 0 ≤ x ≤ 7.5

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

An object is launched at 19.6 meters per second (m/s) from a platform. The equation for the object's height s at time t seconds after launch is s(t)=-16t²+110t+49, where s is in meters. How high is the object after 1 second?

• 143 meters

• 49 meters

• 238 meters

• 110 meters

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

• sec

• 9 sec

• 7 sec

• 6 sec

• y-intercept

• x-coordinate of the vertex

• y-coordinate of the vertex

• x-intercept

Explain the significance of the axis of symmetry in relation to the trajectory of a ball thrown in the air.

• The axis of symmetry helps to predict the highest point the ball will reach.

• The axis of symmetry determines the starting point of the ball's trajectory.

• The axis of symmetry has no significance in relation to the trajectory of the ball.

• The axis of symmetry is used to find the speed of the ball.

The graph of a quadratic function is called

• a line

• a hyperbola

• a parabola

• a cubic

Tags

CCSS.HSF-IF.C.7A