Numberless Quadratic Word Problems

What part of the parabola represents how high off the ground an object started at?

• y-intercept

• x-intercept

• x-coordinate of the vertex

• y-coordinate of the vertex

What part of the parabola represents when an object is at maximum height?

• y-intercept

• x-intercept

• x-coordinate of the vertex

• y-coordinate of the vertex

What part of the parabola represents when the object hits the ground?

• y-intercept

• x-intercept

• x-coordinate of the vertex

• y-coordinate of the vertex

What part of the parabola represents how high an object gets?

• y-intercept

• x-intercept

• x-coordinate of the vertex

• y-coordinate of the vertex

• x at the vertex

• y at the vertex

• positive zero

• I don't know

• x at the vertex

• y at the vertex

• positive zero

• I don't know

Your nephew is standing on his deck and tosses his toy up into the air. The equation h= -2t^2+5t+3 models the toy’s height h in feet from the ground at t seconds after he threw it. How high is the toy after 2 seconds?

• 1.25

• 3

• 4

• 5
  

• 6.13
  

Answer to part c is....

• x at the vertex

• y at the vertex

• positive zero

• I don't know

• x at the vertex

• y at the vertex

• positive zero

• I don't know