3 years ago

Which relation is not a function?

Mathematics

1 answer:

avanturin [10]3 years ago

5 0

For it to be a function none of the x values can repeat.

In D. the x value nine repeats.

Therefore the answer is D.

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At Store A, a game system sells for $150. The same system sells for $175 at Store B. Use a ratio to compare the price at Store A

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150:175
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3 years ago

Please help, I only have 30 minutes left! );

Degger [83]

Answer:

(3, -1)

Step-by-step explanation:

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3 years ago

A librarian surveyed 200 people about their favorite type of movie. If 15% of the people like documentaries, how many people lik

jok3333 [9.3K]

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3 years ago

The sum of 3 and a number is between -2 and 17.

kumpel [21]

Answer:

The number, x = { -5 < x < 14}

This means x is any integer between -5 and 14

Step-by-step explanation:

From the statement, let the number be x

3 + x = y; y = { -2 < y < 17}

This means that y is any integer between -2 and 17

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4 0

3 years ago

f of x equals the quantity x minus one times the quantity x plus two times the quantity x plus four all divided by the quantity

Alik [6]

$f(x)=\frac{(x-1)(x+2)(x+4)}{(x+1)(x-2)(x-4)}$

The denominator of a fraction can't be equal to 0.
$(x+1)(x-2)(x-4) \not= 0 \\
x+1 \not=0 \ \land \ x-2 \not= 0 \ \land \ x-4 \not= 0 \\
x \not= -1 \ \land \ x \not = 2 \ \land \ x \not= 4$

The function is undefined at x=-1, x=2, x=4, because for these values the denominator of the function would equal 0, and it's impossible to divide by 0.

Edward is correct.

7 0

4 years ago