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4 years ago

Which represents the inverse of the function f(x) = 4x? h(x) = x + 4 h(x) = x – 4 h(x) = three-quartersx h(x) = one-quarterx

Mathematics

2 answers:

aalyn [17]4 years ago

8 0

Answer:

$\large\boxed{f^{-1}(x)=h(x)=\dfrac{1}{4}x}$

Step-by-step explanation:

$f(x)=4x\to y=4x\\\\\text{exchange}\ x\ \text{to}\ y\to x=4y\\\\\text{solve for}\ y:\\\\4y=x\qquad\text{divide both sides by 4}\\\\\dfrac{4y}{4}=\dfrac{x}{4}\\\\y=\dfrac{1}{4}x$

morpeh [17]4 years ago

4 0

Answer: D. h[x]=1/4x

Step-by-step explanation:

f(x) = 4x or y = 4x

Its inverse is obtained by switching the variables and solving for y.

x = 4y

y = (1/4)x

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Will the Brainliest answer!!! solve for x and y. 946x+642y=911

Ronch [10]

While you cannot solve 946x+642y=911 for numerical values of x and y, you can indeed solve 946x+642y=911 first for x and then for y:

-911 - 642y

For x: 946x+642y=911 becomes 946x = 911 - 642y, or x = ------------------

946

911-946x

For y: 946x+642y=911 becomes 642y = 911-946x, or y = ---------------

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4 years ago

Read 2 more answers

Carl has a rock collection. Of the rocks, 3/8 are quartz and 1/3 are granite. What fraction of Carl's rocks are quartz or granit

hoa [83]

Answer:

$\frac{17}{24}$ of Carl's rocks are quartz or granite

Step-by-step explanation:

Proportions and Fractions

A proportion is expressed as a fraction a/b, where a and b are compared by division. If a=b, the proportion (or ratio) equals 1, if a<b, the ratio is less than 1, and if a>b, the ratio is greater than 1. The proportion of elements of a set to the total number of elements of the set is less than one, and the sum of all them equals 1.

We know 3/8 of Carl's rock collection are quartz and 1/3 are granite. If both subsets of rocks are mutually exclusive or disjoint (cannot happen simultaneously), then the proportion of both is the sum of the fractions.

$\displaystyle \frac{3}{8}+\frac{1}{3}=\frac{9+8}{24}=\frac{17}{24}$

4 0

3 years ago

Please help !! :) 30 points.

Greeley [361]

Answer: [C] the length of a soccer field

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3 years ago

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Naddik [55]

Answer:

Its equals to 16m^12p^8

Step-by-step explanation:

7 0

4 years ago

Which figure represents the image of parallelogram LMNP after a reflection across the line y = x?

Taya2010 [7]

When you reflect a point across the line y = x, the x-coordinate and y-coordinate change places. This gives you such reflection rule:

From the diagram:
L(3,1), M(4,3), N(5,3) and P(4,1).
Using the reflection rule, you can find coordinates of image points:
L'(1,3), M'(3,4), N'(3,5) and P'(1,4).
As you can see, these are coordinates of vertices of the figure C.
Answer: correct choice is option 3 - figure C.

7 0

4 years ago