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3 years ago

Find the inverse of the logarithmic function y =log₂(x + 7)

Mathematics

2 answers:

ss7ja [257]3 years ago

8 0

1. Interchange x and y: x = log₂(y + 7)

2. Solve this resulting equatino for y:

x x

2 = y + 7 => y = 2 - 7

3. Replace "y" with

-1 -1 x

f (x): f (x) = 2 - 7 This is the desired inverse.

satela [25.4K]3 years ago

3 0

y=2x-7 answered off of a graphing calculator

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3 years ago

How do you graph x-y=1 and 3x+2y=-12

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Answer:

Graph the equations

Step-by-step explanation:

x - y = 1

3x + 2y = - 12

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y = -1 + x

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3 years ago

HELP FAST WILL MAKE BRAINLIEST

valkas [14]

Answer:

x = 0.357143

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtract Property of Equality

Step-by-step explanation:

Step 1: Define

-1.6 - 2x = 5x + 0.9

Step 2: Solve for x

Add 2x on both sides: -1.6 = 7x + 0.9
Subtract 0.9 on both sides: 2.5 = 7x
Divide 7 on both sides: 0.357143 = x
Rewrite: x = 0.357143

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3 years ago