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2 years ago

If f(x) = -3x+1 then f^-1(x) =

Mathematics

1 answer:

elena55 [62]2 years ago

8 0

Answer:

please mark me brainliesf if it helps you

f(x) = -3x+1

or, y = -3x + 1

Interchanging the position of x and y, we get,

x = -3y +1

or, 3y = 1 - x

or, y = 1 - x /3

: . f^-1(x) = 1-x / 3

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100POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

Alex Ar [27]

All of them involve y intercepts

f(x) means y
g(x) means y

y intercept is where the graph crosses the y axis or when x=0 so set x=0

f(x)
x=0 when y=-7.5
y int=-7.5

g(x)
x=0
set x=0
y=3^0-7
y=1-7
y=-6

f(x) yint=-7.5
g(x) yint=-6

A. y int of f(x) is less than yint of g(x)
-7.5<-6
true

B. this is oposite of A so this is wrong

C. this says that g(x) has no yint, false

D. they yints are eqla
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3 years ago

Read 2 more answers

What is 5 5/7 × 3 1/5 ?

laila [671]

Answer:

128/7 or 18 2/7

Step-by-step explanation:

the decimal answer is 18.28571428... so if you round it, it is 18.3

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3 years ago

Read 2 more answers

A public library wants to place 4 magazines and 9 books on each display shelf. The expression 4s+9s represents the total number

Bezzdna [24]

Answer: the answer would be s(9+4)

Step-by-step explanation:

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3 years ago

Jenny and Kath hire the canal boat for 14 days. They share the hire cost of £1785.00 in the ratio 2:3. Work out the smaller shar

Dafna1 [17]

Answer:

£714.00

Step-by-step explanation:

The first step is to set up expresssions for the two shares:

Let x = the amount of one share. The other share is 1785 - x. <u>You don't have to worry about which is smaller--that part will work out automatically</u>!

The two shares are in the ratio of 2:3, so set up the proportion

$\frac{x}{1785-x}=\frac{2}{3}$

Again, you don't have to worry--you could set up the proportion "upside down" and everything will work out in the end.

Solve the proportion for x by "cross multiplying" -- use the Means-Extremes Property of proportions.

$(3)(x)=(2)(1785-x)\\3x=3570-2x\\5x=3570\\x=714$

So one share is £714£ and the other is £1785 - £714 = £1071.

The smaller share is £714.

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3 years ago

Helllp,??????????????

makkiz [27]

If the first question mark is 3 then the next is 13 than the next still 13 and the right one 26 and then lastly x is equally to 2
Or
3x+9+10x=33
13x+9=33
13x=26
X=2

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3 years ago