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Agata [3.3K]
3 years ago
7

Find the inverse f(x)=8-9x

Mathematics
1 answer:
Sati [7]3 years ago
4 0

Answer:

{f}^{ - 1} (x) =  -  \frac{1}{9} x  +  \frac{8}{9}

Step-by-step explanation:

f(x) = 8 - 9x

y = 8 - 9x

x = 8 - 9y

8 - 9y = x

- 9y = x - 8

y =  -  \frac{1}{9} x +  \frac{8}{9}

\boxed{\green{{f}^{ - 1} (x) =  -  \frac{1}{9} x  +  \frac{8}{9}}}

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A taxi service charges a flat fee of $1.25 and $0.75 per mile. If Henri has $14.00, which of the following shows the number of m
Alexeev081 [22]

Answer: m less-than-or-equal-to 17

Step-by-step explanation: First lets write an equation to solve for m, the amount of miles Henry can afford in the taxi.

The inequality 0.75m - 1.25 less than or equal to 14 represents this.

Solve for m.

0.75m - 1.25 + 1.25 = 14 - 1.25

0.75m = 12.75

We need to make m be equal to one mile not 0.75, so divide both sides by 0.75.

0.75m/0.75 = 12.75/0.75

m = 17          

So m is less than or equal to 17

4 0
4 years ago
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Answer:


Step-by-step explanation:

combine like terms (6n-4n)=(5-15)

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umka21 [38]
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or

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