Quadratic Word Problems Key Features

Is this point a max or min?

• max

• min

How many solutions does this graph have?

• one

• two

• no solutions

• all real numbers

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

A rocket is launched.

Which key feature tells us about the initial height of the rocket?

• positive

  x-intercept

• y-intercept

• x of vertex

• y of vertex

A rocket is launched.

Which key feature tells us about the time it took to get to the maximum height of the rocket?

• positive

  x-intercept

• y-intercept

• x of vertex

• y of vertex

What key feature tells the initial height of the roller coaster?

• y-intercept

• positive root/

  x-intercept

• x of vertex

• y of vertex

What key feature tells the minimum height of the roller coaster?

• y-intercept

• positive root/

  x-intercept

• y of vertex

• x of vertex

A rocket is launched.

Which key feature tells us about the maximum height of the rocket?

• positive

  x-intercept

• y-intercept

• x of vertex

• y of vertex

How fast would you reach the water if you jump of a cliff using the formula:    h(t) = -16t² + 8t + 24?

• 8

• 1

• 1.5

• 1/4

What are the green dots called?

• y-intercepts

• rate of change

• vertex

• x-intercepts