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3 years ago

If f(x) = 1/9 x-2, what is f^-1 (x)?

Mathematics

1 answer:

babunello [35]3 years ago

5 0

Answer:

Step-by-step explanation:

let y = f(x) and rearrange making x the subject

Given

y = $\frac{1}{9}$ x - 2

Multiply through by 9

9y = x - 18 ( add 18 to both sides )

x = 9y + 18

Change y back into terms of x, hence

$f^{-1}$ (x) = 9x + 18

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The point (-2, -1) satisfies which of the following inequalities?

satela [25.4K]

Answer:

Step-by-step explanation:

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3 years ago

Write the equation of the line that passes through (–1, 5) and has a slope of 3 in point-slope form.

Mama L [17]

The point-slope form:

$y-y_1=m(x-x_1)$

We have:

$(-1,\ 5)\to x_1=-1,\ y_1=5\\m=3$

Substitute:

$y-5=3(x-(-1))\\\\y-5=3(x+1)$

Answer: C. y - 5 = 3(x + 1)

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3 years ago

Find the least common multiple of: 12x^3y^2 and 15x^2y^5

allochka39001 [22]

Answer: $60x^3y^5$

Step-by-step explanation:

Least Common Multiple :The least positive number that is a multiple of two or more numbers.

To find : The least common multiple of: $12x^3y^2$ and $15x^2y^5.$

Since, $12x^3y^2=2\times2\times3\times x^3y^2$

$15x^2y^5=3\times5\times x^2y^5$

The least common multiple of: $12x^3y^2$ and $15x^2y^5.$ = $2\times2\times3\times5\times x^3y^5=60x^3y^5$ [take highest power of x and y ]

Hence, the least common multiple of: $12x^3y^2$ and $15x^2y^5.$ = $60x^3y^5$

3 0

3 years ago

Plz help me I am timed! Well mark brainliest if you are correct!

omeli [17]

Answer:

Step-by-step explanation:

The point Y is the center of the circle

6 0

2 years ago

Read 2 more answers

Please help will mark brainliest

NeX [460]

Answer: 145.8

Step-by-step explanation: you have to divide 45 and 25 to get 1.8, then you get 81 and you multiply 81 x 1.8 to get your answer.

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3 years ago