Illustrative Math Intro to Quadratics

When I want to find the maximum or minimum height of an object, I should_____

• Look at the x intercepts

• Look at the axis of symmetry

• Look at the y intercept

• Look at the y-coordinate for the vertex

• Look at the x-coordinate for the vertex

If the graph shows price vs profit, what is the maximum profit? 

• 35

• 12,000

• 12,500

• 60

What is the vertex?

• (5,2)

• (2,5)

• (-2,5)

• (-5,2)

Which of the following mean the same as x-intercept? (More than one answer! Select all that are correct)

• Zero

• Root

• Axis of Symmetry

• Solution

• Maximum

Which one are we looking for?

Elliot 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

• zeros/roots/x intercepts

• y-intercept

Which one are we looking for?

Isabella 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

• zeros/roots/x intercepts

• y-intercept

Which one are we looking for?

Darrell is trying to find out 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

• roots/zeros/x intercepts

• y-intercept

Which one are we looking for?

Jaiden wanted to know the initial height of a baseball when it was hit at home plate.

• x at vertex

• y at vertex

• roots/zeros/x intercepts

• y-intercept

Which one are we looking for?

Matias is wondering how long it will take a football to hit the ground after throwing it at practice.

• x at vertex

• y at vertex

• zeros/roots/x intercept

• y-intercept

What is the green dashed line called?

• roots or x-intercepts

• parabola

• axis of symmetry

• y intercept