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Scorpion4ik [409]
3 years ago
13

Find the inverse of the function y= 2x

Mathematics
2 answers:
Mademuasel [1]3 years ago
6 0

Answer:

y = x/2

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality<u>  </u>

<u>Algebra I</u>

  • Functions
  • Function Notation
  • Inverse Functions

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

y = 2x

<u>Step 2: Solve</u>

  1. Swap:                                                                                                                x = 2y
  2. [Division Property of Equality] Divide 2 on both sides:                                 x/2 = y
  3. Rewrite:                                                                                                             y = x/2
Valentin [98]3 years ago
3 0

Answer:

y=\frac{1}{2}x

Step-by-step explanation:

To find the inverse of a function, switch the x and y values and isolate y. After switching the x and y values of y=2x, we get x=2y.

Now divide by 2 to isolate y:

y=\frac{x}{2},\\\boxed{y=\frac{1}{2}x}

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Hitman42 [59]

Answer:

Una ecuación de segundo grado completa es algo como:

y = a*x^2 + b*x + c

Un problema tipico que usa ecuaciones de este tipo es algo que nos haga multiplicar dos términos como h*(x + k) y n*(x + j)

Donde h, k, n, y j son números reales.

Entonces planteemos el siguiente caso.

"Juan tiene una tabla rectangular, de tal forma que su largo es (x + 3cm), y el ancho es igual a dos veces su largo, si sabemos que el área de esta tabla es 95 cm^2 ¿cuál es el valor de x?"

Acá hay que recordar que para un rectángulo de largo L y ancho W, el área es:

A = L*W

En este caso tendremos:

L = (x + 3cm)

Y el ancho es dos veces eso, entonces:

W = 2*(x + 3cm)

Entonces el area de esta tabla se escribirá como:

A = (x + 3cm)*2*(x + 3cm)

Ahora solo tenemos que expandir eso:

A = 2*x^2 + 12cm*x + 18cm^2

Ahora sabemos que el area de esta tabla es 95cm^2

Entonces:

95cm^2 =  2*x^2 + 12cm*x + 18cm^2

0 = 2*x^2 + 12cm*x + (18cm^2 - 95cm^2)

0 = 2*x^2 + 12cm*x - 77 cm^2

Esta es una ecuación de segundo grado completa, la cual deberiamos resolver para encontrar el valor de x como se nos pide en el problema.

4 0
3 years ago
A conjecture is an educated guess
Kitty [74]

Answer:

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5 0
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8 0
4 years ago
Graph the line with slope 3 and y-intercept -8.
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There you go hope this helps

3 0
3 years ago
Need help on the last problem please.
pshichka [43]

Answer:

6 of x and 5 of y

Step-by-step explanation:

x = number of closets of the first type

y = number of closets of the second type

1200 = 100x + 120y

100 = 10x + 8y

10x = 100 - 8y

10x(100 - 8y) + 120y = 1200

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20x + 24y = max

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6 0
3 years ago
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