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liq [111]
4 years ago
14

What is the inverse of f(x) = 3x + 6 and is it a function?

Mathematics
2 answers:
svetoff [14.1K]4 years ago
6 0

Answer:

f-1 (x) = x/3 -2

this is the one

VashaNatasha [74]4 years ago
5 0

Answer:

Step-by-step explanation:

F(x)=3x+6

let y=f(x)

y=3x+6

to find the inverse of a function easily.

you just need to switch the variables

then make y the subject of formula

x⇒y and y⇒x

y=3x+6

x=3y+6

3y=x-6

y=x-6/3

the inverse of the function

f(x)=3x+6

f(x) ⁻¹= x-6/3

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Answer: B 2

Step-by-step explanation:

If you look at the graph, you can see it goes up every hour by 2.

So therefore your answer will be 2.

Hope this helps!

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3 years ago
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What is the perimeter of the trapezoid with vertices Q(8, 8), R(14, 16), S(20, 16), and T(22, 8)? Round to the nearest hundredth
andre [41]

Answer:

The perimeter is 38.25 units

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|TQ|=|22-8|=14

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d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

We use the distance to find the non parallel sides.

|ST|=\sqrt{(20-22)^2+(16-8)^2} =8.25 units.

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7 0
3 years ago
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Cell phone companies estimate that the total number of text messages (t) since the beginning of the month can be modeled by t=40
GalinKa [24]

The desired number is the difference between the number of messages sent by the 16th day and the number sent by the 9th day:

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4 0
3 years ago
PLEASE HELP! 13 POINTS! A fitness center has two membership plans. One has a low dollar sign up fee of 15 dollars and costs 38 d
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Answer:

X = 9 months

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To solve the number of months when the cost of each payment

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A = 38x + 15


B = 31x + 78


38x + 15 = 31x + 78


7x = 63


X = 9 months



5 0
4 years ago
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