Seudónimo Seudónimo

15-07-2018
Mathematics

contestada

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

y = x2 - 7
y = x2 + 7
y = 2x2 + 7
y = 2x - 7
y = 2x + 7

Respuesta :

altavistard altavistard

15-07-2018

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.

Answer Link

cabr2002 cabr2002

15-07-2018

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

Answer Link

Otras preguntas

Use the elimination method 1) 3x+y=-1 5x-y=9 2) 4x+6y=24 4x-y=10 3)2x-y=-3 x+3y=16 4) 2x+3y=7 3x+4y=10

Which leader of the Scientific Revolution in England promoted the idea that science must rely on repeated observation and experimentation? A. Isaac Newton B. Ga

What of the following words would an author NOT use to establish the sequence of events in a story? A) now. B) later. C) tomorrow. D) forever.

Which sentence has a misplaced adjective phrase? A. Our flight to Alaska was very long. B. Let's have a talk about your responsibilities. C. The city needed new

is 36 yards 2 feet greater than less then or equal to 114 feet 2 inches

what is 1.04 as a percent

What was one advantage the Confederacy had over the Union in the Civil War? Select the best answer from the choices provided. control of major cities a huge mer

What happened after Israel declared its independence on May 14, 1948? A. Arab countries invaded Israel, and the first Arab-Israeli War began. B. Israel became t

A hiker walked 12.8 miles from 9:00 am to noon. He walked an additional 17.2 miles from 1:00 pm. What is his average rate for the entire walk, miles per hour?

Seth took 270 pictures for the yearbook And 180 for the school paper. Which proportion can be used to determine p,the percent of the total numbers of pictures h