All categories

1 year ago

Is the following relation a function? A. Yes B. No

Mathematics

1 answer:

SVETLANKA909090 [29]1 year ago

3 0

Answer:

B. No

Step-by-step explanation:

In order for the relation to be a function, each X value must source exactly one arrow. The value -1 maps to two different values (2, -1), so the relation is NOT A FUNCTION.

You might be interested in

What is the common ratio in the sequence 6,12,24,48,96 A -2 B 2 C 6 D 1/2

anyanavicka [17]

The ratio is that of one term to the one before:

... 12/6 = 2

It is "common" because it applies to every pair of adjacent terms:

... 24/12 = 48/24 = 96/48 = 2

The appropriate choice is ...

... B 2

3 0

2 years ago

When deriving the quadratic formula by completing the square, what expression can be added to both sides of the equation to crea

____ [38]

Answer:

According to steps 2 and 4. The second-order polynomial must be added by $-c$ and $b^{2}$ to create a perfect square trinomial.

Step-by-step explanation:

Let consider a second-order polynomial of the form $a\cdot x^{2} + b\cdot x + c = 0$ , $\forall \,x \in\mathbb{R}$ . The procedure is presented below:

1) $a\cdot x^{2} + b\cdot x + c = 0$ (Given)

2) $a\cdot x^{2} + b \cdot x = -c$ (Compatibility with addition/Existence of additive inverse/Modulative property)

3) $4\cdot a^{2}\cdot x^{2} + 4\cdot a \cdot b \cdot x = -4\cdot a \cdot c$ (Compatibility with multiplication)

4) $4\cdot a^{2}\cdot x^{2} + 4\cdot a \cdot b \cdot x + b^{2} = b^{2}-4\cdot a \cdot c$ (Compatibility with addition/Existence of additive inverse/Modulative property)

5) $(2\cdot a \cdot x + b)^{2} = b^{2}-4\cdot a \cdot c$ (Perfect square trinomial)

According to steps 2 and 4. The second-order polynomial must be added by $-c$ and $b^{2}$ to create a perfect square trinomial.

7 0

2 years ago

Read 2 more answers

What is the value of cos(tan-1(0))? –1 0 1 StartFraction pi Over 2 EndFraction

djyliett [7]

Answer:

answer is 1

Step-by-step explanation:

just did test on edge

4 0

2 years ago

Three nurses attended a seminar for two days. The travel expenses for each nurse were $982. Additional expenses per nurse per da

Vlad [161]

You can just add up the "additional expenses", multiply that by 2 (for the 2 days) and then multiply that by 3 (for the 3 nurses) Then multiply 982 by 3 (for 3 nurses) and all the numbers up

I got $8526 as an answer,

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

7 0

2 years ago

The length of a rectangle is 8 1/2 inches and the width is 3 1/4 inches. What is the ratio, using whole numbers, of the length t

frosja888 [35]

Short answer 34/13
Start by converting both to improper fractions.

8 1/2 = (2*8 + 1)/2 = 17/2

3 1/4 = (3*4 + 1)/4 = 13/4

Next set up a 4 layer fraction

$\dfrac{\dfrac{17}{2}}{\dfrac{13}{4} }$

Invert the lower fraction and multiply $\dfrac{17}{2}* \dfrac{4}{13}$

Cancel the 2 and the 4 leaving you with a 2 in the numerator. $\dfrac{17*2}{13} =\dfrac{34}{13}$

5 0

2 years ago