Vertex and Quadratic Functions Concepts

Vertex and Quadratic Functions Concepts

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

Thomas White

FREE Resource

Mrs. J introduces quadratic functions and guides students through solving problems using different forms of quadratic equations. The video covers real-life applications, such as determining if a gardener has enough fencing and solving projectile motion problems. It concludes with modeling the trajectory of a baseball hit during a game, emphasizing the use of quadratic equations to find maximum height and time to hit the ground.

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in modeling quadratic functions?

Finding the y-intercept

Understanding the standard form

Solving for x-intercepts

Identifying the vertex

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which formula is used to find the x-value of the vertex in standard form?

x = -b/2a

x = b/2a

x = -2a/b

x = 2a/b

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In intercept form, how do you determine the x-value of the vertex?

By averaging the zeros

By completing the square

By finding the y-intercept

By using the quadratic formula

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the vertex of a quadratic equation in vertex form?

The point given directly in the equation

The midpoint of the x-intercepts

The point where the graph intersects the x-axis

The point where the graph intersects the y-axis

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of the quadratic function in the gardener's problem?

To find the height of the garden

To determine the length of the fencing

To calculate the area of the garden

To find the perimeter of the garden

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the quadratic model for projectile motion help us determine?

The color of the object

The weight of the object

The distance fallen or height after a certain time

The speed of the object

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which formula is used to calculate the distance fallen for a water balloon?

d(t) = 8t^2

d(t) = 32t^2

d(t) = 16t^2

d(t) = 16t

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