Roots vs Zeros

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?

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?

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 are the x- intercepts?

• x= 0 and x= -4

• x= 0 and x= 4

• y= 0

• x= 2

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?

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

The solutions are ​ (a)   and the factors are ​ (b)  

• -2 and 1

• (x+2)(x-1)

• 2 and -1

• (x-2)(x+1_

• (x-2)(x+1)

The zeros are ​ (a)   and the factors are ​ (b)  

• -3 and 4

• (x+3)(x-4)

• 3 and -4

• (x-3)(x+4)

The solutions are ​ (a)   and the factors are ​ (b)  

• -1 and 4

• (x+1)(x-4)

• 1 and -4

• (x-1)(x+4)

The zeros are ​ ​ (a)  

• -2 and 4

• (x-2)(x+4)

• 2 and -4

• (x+2)(x-4)