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Romashka [77]
4 years ago
9

What is the inverse of the function f(x) = 4x + 8?

Mathematics
1 answer:
Amanda [17]4 years ago
6 0
<h3>Answer:  h(x) = (1/4)x - 2 which is choice A</h3>

How to get this answer:

Replace f(x) with y. Then swap x and y. Lastly, solve for y to get the inverse.

f(x) = 4x+8

y = 4x+8

x = 4y+8

x-8 = 4y

4y = x-8

y = (x-8)/4

y = x/4 - 8/4

y = (1/4)x - 2

h(x) = (1/4)x - 2

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Which function is graphed below?
hoa [83]

Option B. y = 3 (one-third) Superscript x is the function that is graphed in this question.

<h3>How to solve the problem</h3>

We have exponential functions to be of the form abˣ

This can be written in the form of f(x) = 3\frac{1}{3} ^x

So it crosses through the point (0, 3).

From the way that the curve passes through the circle, we can see that the it is said to pass through at (0, 3) and approaches y = 0 in quadrant 1

Hence this would put our answer to be y = 3 (one-third) Superscript x

Read more on coordinate planes here

brainly.com/question/27975730?referrer=searchResults

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4 0
2 years ago
Read 2 more answers
A diagram of Tracy’s deck is shown below, shaded blue. He wants to cover the
Lelechka [254]
Hey! We can’t see a picture of the problem.
4 0
4 years ago
Emma has money into savings accounts. One rate is 8% and the other is 12%. If she has $450 more in the 12% account and the total
AveGali [126]

Let's say that the value invested in the account with a rate of 8% is "x", then the amount invested in the account with a rate of 12% is:

x+450

To calculate the total interest we need to calculate the interest of each individual account and sum them:

\begin{gathered} \frac{8}{100}\cdot x=0.08\cdot x \\ \frac{12}{100}\cdot(x+450)=0.12\cdot x+54 \end{gathered}

The total interest is the sum of the two expressions above:

\begin{gathered} 220=(0.08\cdot x)+(0.12\cdot x+54) \\ 220=0.08\cdot x+0.12\cdot x+54 \\ 220-54=0.2\cdot x \\ 166=0.2\cdot x \\ 0.2\cdot x=166 \\ x=\frac{166}{0.2} \\ x=830 \end{gathered}

The value invested in the account with 8% interest is 830, the one invested in the account with 12% interest is 1280.

7 0
1 year ago
An equation is shown.
Anit [1.1K]
We take the equation 4x+y=5 and subtract 4x from both sides to get
                                              y = 5 - 4x
The answer to this question is <span>y=5−4x.</span>
4 0
4 years ago
If 7 people are in your family and everyone is supposed to drink 7/8ths of water each day, how much water is needed for the whol
laiz [17]

Answer: 6.125 or 6¹/₈ units of water

Step-by-step explanation:

There are 7 people in the family and each of them are mean to drink 7/8ths of water.

The amount of water all 7 should take is therefore:

= 7 * 7/8

= 49/8

= 6.125 or 6¹/₈ units of water

5 0
3 years ago
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