Quiz about Primer - Lin Alg

Question 1

(5 points)

What are the components of $$A$$ ?

Accepted Answer

Question 2

(5 points)

Are $$A\left(cu\right)$$ and $$c\left(Au\right)$$ equivalent?

If so, what are equivalent expressions for them?

Accepted Answer

Accepted Answer

Accepted Answer

Answer

No, they are not equivalent.

Question 3

(5 points)

Are $$A\left(u+v\right)$$ and $$Au\ +\ Av$$ equivalent?

If so, what are equivalent expressions for them?

Accepted Answer

Answer

No, they are not equivalent.

Question 4

(5 points)

Is $$\left(\sin x_1,\ x_1+x_2\right)$$ a linear function? If so, express the function as a matrix $$A$$ .

Accepted Answer

No.

Answer

Answer

Answer

Question 5

(5 points)

Is $$\left(2,\ x_1+x_2\right)$$ a linear function? If so, express the function as a matrix $$A$$ .

Accepted Answer

No.

Answer

Yes, the function is linear, but there is no matrix to represent it.

Answer

Answer

Question 6

(5 points)

Is $$\left(0,\ 0\right)$$ a linear function? If so, express the function as a matrix $$A$$ .

Accepted Answer

Answer

No.

Answer

Yes, the function is linear, but there is no matrix to represent it.

Question 7

(3 points)

What is $$n$$ ?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 8

(5 points)

What is $$ ext{rank}\ \left(A\ b ight)$$ ?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 9

(5 points)

How many solutions are there to $$b\ =\ Ax$$ ?

Accepted Answer

1

Answer

infinite

Answer

none

Question 10

(BONUS! 10 POINTS)

What is $$x$$ ?

Accepted Answer

$$\left(2,0\right)$$

Answer

$$\left(1,3\right)$$

Answer

$$\left(0,2.5\right)$$

Answer

$$\left(1,\frac{5}{4}\right)$$

Question 11

(3 points)

What is $$n$$ ?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 12

(5 points)

What is $$ ext{rank}\ \left(A\ b ight)$$ ?

Accepted Answer

1

Answer

2

Answer

3

Answer

4

Question 13

(5 points)

How many solutions are there to $$b\ =\ Ax$$ ?

Accepted Answer

infinite

Answer

1

Answer

none

Question 14

(5 points)

What is $$n$$ ?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 15

(5 points)

What is $$ ext{rank}\ \left(A\ b ight)$$ ?

Accepted Answer

3

Answer

1

Answer

2

Answer

4

Question 16

(5 points)

How many solutions are there to $$b\ =\ Ax$$ ?

Accepted Answer

none

Answer

1

Answer

infinite

Question 17

(ONLY 1 POINT!)

Is the equilibrium matrix tall and/or fat and/or square?

Accepted Answer

square

(stable and determinate)

Answer

tall

(unstable)

Answer

fat

(indeterminate)

Question 18

(3 points)

Is the equilibrium matrix tall and/or fat and/or square?

Accepted Answer

fat

(indeterminate)

Answer

tall

(unstable)

Answer

square

(stable and determinate)

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics