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3 years ago

WILL MARK BRAINLIEST

Mathematics

1 answer:

UkoKoshka [18]3 years ago

4 0

y=mx+b

it is pretty simple, the m stays the same and is the x, so (2,_) and then the b is the slope so you add the b and m together to get 5 (2,5)

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Which of the following correctly describes the domain of the function shown

labwork [276]

Option D:

$\{x: x \neq 1\}$ is the domain of the function.

Solution:

Given function is

$$r(x)=\frac{2 x}{x-1}$

To find the domain of the function:

Option A: $\{x: x \neq 0\}$

Substitute x = 0 in r(x).

$$r(0)=\frac{2 \times 0}{0-1}=0$

If x = 0, then r(0) = 0

So that x ≠ 0 is false.

So, $\{x: x \neq 0\}$ is not the domain of the function.

Option B: $\{x: x \neq \pm 1\}$

Substitute x = –1 in r(x).

$$r(-1)=\frac{2 \times (-1)}{-1-1}=1$

If x = –1, then r(–1) = 1

So that x = ± 1 is false.

So, $\{x: x \neq \pm 1\}$ is not the domain of the function.

Option C: $\{x: \text { all real numbers }\}$

Substitute x = 1 in r(x).

$$r(1)=\frac{2 \times 1}{1-1}=\frac{2}{0}$

It is indeterminate.

So, all real numbers are not the domain of the function.

Option D: $\{x: x \neq 1\}$

Substitute x = 1 in r(x).

$$r(1)=\frac{2 \times 1}{1-1}=\frac{2}{0}$

It is indeterminate.

So, $\{x: x \neq 1\}$ is the domain of the function.

4 0

3 years ago

Which is the image of -2,5 reflected across x=2?

Basile [38]

Answer:

6,5

Step-by-step explanation:

-2 is 4 down from 2, so reflected should be 4 up, or 6

3 0

3 years ago

Solve for C a = b + c/d a. c=ad-b b. c= a+b/d c. c=ad/b d. c= ab+d

maksim [4K]

a = b + c/d

Subtract 'b' from each side: a - b = c/d

Multiply each side by 'd' : d (a - b) = c

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3 years ago

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Simplify 425xy⁴/25xy²

beks73 [17]

We have the expression

$\frac{425xy^4}{25xy^2}$

We can already simplify x because it's both on the numerator and denominator

$\frac{425y^4}{25y^2}$

Now we can simplify 425/25 = 17

$\frac{17y^4}{y^2}$

Remember that

$\frac{a^n}{a^m}=a^{n-m}$

Then

$17y^{4-2}=17y^2$

The final result is

$17y^2$

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1 year ago

I have 5 quarters and 7 pennies. What fraction of the coins are pennies?

Alex787 [66]

Answer:7/12

Step-by-step explanation:there are 12 coins in total and 7 of them are pennies

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3 years ago

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