All categories

3 years ago

Does the equation below represent a relation, a function, both a relation and a function, or neither a relation nor function

Mathematics

1 answer:

Jet001 [13]3 years ago

4 0

Answer:

A. neither a relation nor a function

Step-by-step explanation:

A relation between two sets is a collection of ordered pairs containing one object from each set.

A function is a relation from a set of inputs to a set of possible outputs where each input is related to exactly one output.

Quadratic equations are not functions. Quadratic equations are not a function because they touch two points that is on the same y-axis. Furthermore, if they are two points that have the same x axis, then it is not a function either. It doesn't have a relation either because there are two outputs that are the same by the x axis for 3x^2 - 9x + 20. Those are x = 1 and x = 2. For proof, you can plug both of them in.

3(1)^2 - 9(1) + 20 = 14

3(2)^2 - 9(2)+ 20 = 14

Both answers have 14 as the y-axis/output. This proves that this quadratic equation is not a relation either. Therefore, this equation is neither a relation nor a function.

You might be interested in

Name three values of x that would result in <br> y = cot x being undefined.

tester [92]

Three values of x that would result in y = cot x being undefined are $0,\pi ,2\pi$

Given :

y=cot(x)

we need to find where cot(x) is undefined

We know that $cot(x)=\frac{cotx}{sinx}$

when the denominator is 0 then we can say cot(x) is undefined

Lets find out x values that makes sin(x) as 0

We know that sin(0)=0

$sin(\pi )=0\\sin(2\pi )=0$

x values values that makes sin(x)=0 are $0,\pi ,2\pi$

These x values makes the denominator of cot(x) as 0 and it is undefined

So , three values of x that would result in y = cot x being undefined are $0,\pi ,2\pi$

Learn more : brainly.ph/question/12155214

6 0

3 years ago

Rachel is baking a cake but does not know if she wants to make a round or a square cake which cake has a larger area a round 8 i

GarryVolchara [31]

Answer:

The square cake has a larger area

Step-by-step explanation:

Square cake

Area = L*L = (9inch*9inch) = 81 inch^2

Round cake

(8 inches corresponds to the diameter, so the radius is 4 inches)

Area = pi*(radius^2) = 3.1416*(8inch/2)^2 = 50.265 inch^2

Since 81 inch^2 > 50.265 inch^2

The Square cake has a bigger area

3 0

3 years ago

Jane took a test. The test had 130 questions. All the questions have equal value. She answered 104 questions correctly. What per

nasty-shy [4]

Answer:

78% u have to do 130-26=104 then find a number that makes 26 = to 104

7 0

3 years ago

Read 2 more answers

Solve the equation below and record solution. <br> Example Solution: x = ______<br> 35 = 1.5x - 10

Oliga [24]

Answer:

x=30

Step-by-step explanation:

Let's solve your equation step-by-step.

35=1.5x−10

Step 1: Flip the equation.

1.5x−10=35

Step 2: Add 10 to both sides.

1.5x−10+10=35+10

1.5x=45

Step 3: Divide both sides by 1.5.

1.5x÷1.5=45÷1.5

x=30

4 0

3 years ago

Read 2 more answers

Insert 2 sets of parentheses to make each sentence true: 2 x 14 - 9 - 17 - 14 = 7

Mandarinka [93]

It’s most definitely C

6 0

3 years ago