Understanding Function Properties

Understanding Function Properties

Assessment

Interactive Video

Mathematics

7th - 10th Grade

Hard

Created by

Liam Anderson

FREE Resource

The video tutorial explains how to define a function f(x) = ax^3 + b, where a and b are constants. It uses given conditions f(0) = 2 and f(2) = 3 to determine the values of a and b. The tutorial demonstrates solving for b as 2 and a as 1/8, and verifies that a > 0, b > 0, and a < b are true.

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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the general form of the function f(x) as defined in the video?

f(x) = ax + b

f(x) = ax^3 + b

f(x) = ax^3 + bx

f(x) = ax^2 + b

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If f(0) = 2, what does this tell us about the constant b?

b = 3

b = 2

b = 1

b = 0

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of f(0) in terms of a and b?

0

a + b

b

a

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What equation is formed when substituting f(2) = 3 into the function?

8a + 2 = 3

2a + b = 3

8a + b = 3

4a + b = 3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you solve for a when given the equation 8a + 2 = 3?

Multiply both sides by 8, then subtract 2

Add 2 to both sides, then divide by 8

Divide both sides by 8, then add 2

Subtract 2 from both sides, then divide by 8

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of a after solving the equation 8a + 2 = 3?

1

1/8

1/2

1/4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is true about the constants a and b?

a is greater than b

a is greater than zero

a is less than b

a is equal to b

8.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between a and zero?

a is less than zero

a is equal to zero

a is not related to zero

a is greater than zero

9.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements is true about b?

b is less than zero

b is not related to zero

b is equal to zero

b is greater than zero