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3 years ago

Is x = 1 a function?

Mathematics

2 answers:

GaryK [48]3 years ago

7 0

Answer:

Step-by-step explanation:

A function is an equation for which any x value matches with exactly one y value .

x=1 matches with any y answer (as y is not included in the equation), so it is not a function.

**This question involves the definition of functions, which you may wish to revise. I'm always happy to help!

Neko [114]3 years ago

5 0

Answer:

No, x = 1 is not a function

Step-by-step explanation:

No, x = 1 is not a function. There's only one variable here. In a function or relationship, one variable maps onto another variable via some rule.

x = 1 can be graphed: It's a straight, vertical line. Recall that vertical lines have no defined slope.

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A coin bank that excepts only nickels and dimes contains $9.15. There are three more than twice as many nickels as there are dim

valentinak56 [21]

45 dimes and 93 nickels were in bank

<em><u>Solution:</u></em>

Let "n" be the number of nickels

Let "d" be the number of dimes

We know that,

value of 1 nickel = $ 0.05

value of 1 dime = $ 0.10

<em><u>Given that There are three more than twice as many nickels as there are dimes</u></em>

Number of nickels = 3 + 2(number of dimes)

n = 3 + 2d ---- eqn 1

<em><u>Also given that coin bank that excepts only nickels and dimes contains $9.15</u></em>

number of nickels x value of 1 nickel + number of dimes x value of 1 dime = 9.15

$n \times 0.05 + d \times 0.10 = 9.15$

0.05n + 0.10d = 9.15 ---- eqn 2

<em><u>Let us solve eqn 1 and eqn 2</u></em>

Substitute eqn 1 in eqn 2

0.05(3 + 2d) + 0.10d = 9.15

0.15 + 0.1d + 0.10d = 9.15

0.2d = 9

From eqn 1

n = 3 + 2(45)

n = 3 + 90 = 93

Thus 45 dimes and 93 nickels were in bank

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4 years ago

E + 1 13/16 = 2 5/16

Burka [1]

e + 1 13/16 = 2 5/16

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e = 2 5/16 - 1 13/16

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3 years ago

How much interest will Sara pay if she borrows:<br> $1,400 at 4% for 60 months.

navik [9.2K]

Answer:

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Step-by-step explanation:

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3 years ago

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DanielleElmas [232]

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3 years ago

Read 2 more answers

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Illusion [34]

The answer is correct

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3 years ago

Is x = 1 a function?​

Is x = 1 a function?