Applied Quadratics Vertex

Which one are we looking for?

Jack wants to know how high the soccer ball will get if he kicks it straight up in the air.

• x at vertex

• y at vertex

• positive zero

Which one are we looking at?

Lily wants to know how long her toy rocket will be in the air after she lights the fuse to launch it from a 1.5-foot launch pad.

• x at vertex

• y at vertex

• positive zero

Which one are we looking for?

Nancy is trying to find how many seconds it will take a golf ball to get to its highest point after being hit on the golf course.

• x at vertex

• y at vertex

• positive zero

Which one are we looking for?

Bill is wondering how long it will take a football to hit the ground after Tom Brady throws it during practice.

• x at vertex

• y at vertex

• positive zero

Which one are we looking for?

Sally threw a ball in the air. Sally’s friend wanted to find out how high the ball got given that it took 1 second to get to its highest point.

• x at vertex

• y at vertex

• positive zero

Which one are we looking for?

Ray found the maximum height of a basketball thrown from half court to be 21 feet and wants to know how long it took to get there.

• x at vertex

• y at vertex

• positive zero

How do I find the time it takes to get to the highest point?

(choose all that apply)

• Use the axis of symmetry formula.

• Find the x-value of the maximum of the function.

• Find the y-value of the maximum of the function.

• Find the positive zero of the function.

• Use the axis of symmetry formula, plug back into equation.

How do I find the highest point?

(choose all that apply)

• Use the axis of symmetry formula.

• Find the x-value of the maximum of the function.

• Find the y-value of the maximum of the function.

• Find the positive zero of the function.

• Use the axis of symmetry formula, plug back into equation.

Tags

CCSS.HSF-IF.C.7A

How do I find how long the object was in the air?

(choose all that apply)

• Use the axis of symmetry formula.

• Find the x-value of the maximum of the function.

• Find the y-value of the maximum of the function.

• Find the positive zero of the function.

• Use the axis of symmetry formula, plug back into equation.

How do I find when the object hits the ground?

(choose all that apply)

• Use the axis of symmetry formula.

• Find the x-value of the maximum of the function.

• Find the y-value of the maximum of the function.

• Find the positive zero of the function.

• Use the axis of symmetry formula, plug back into equation.