Intro to Quadratics

In the following quadratic equation, which is the "b" term?

y = 3x² + 9x + 6

• 3

• 6

• 9

• x

In the following quadratic equation, which is the "c" term?

y = 3x² + 9x + 6

• 3

• 6

• 9

• x

What direction is the following equation opening? y = -3x² + 8

• Up

• Down

• Left

• Right

What is the vertex of the graph. Is it a maximum or minimum?

• (-2,1) minimum

• (-2, 1) maximum

• (2, -1) minimum

• (2, -1) maximum

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

• 35

• 12,000

• 12,500

• 60

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? Is 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