Introduction into Quadratic Functions

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

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

• 1

• 3

• 2

• 5

Which of the following represents a quadratic function?

Which answer choice describes  y = -3x² +7x - 2 accurately?

• opens up with a maximum

• opens up with a minimum

• opens down with a maximum

• opens down with a minimum 

Tags

CCSS.HSF-IF.C.7A

• 1

• 3

• 2

• 5

• 4

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A