25-10-2016
Mathematics

contestada

The range of the function f(x) = x + 5 is {7, 9}. What is the function’s domain?

Respuesta :

linktra linktra

25-10-2016

The functions domain is (2,4).

Answer Link

CaptainBeyond CaptainBeyond

25-10-2016

Just substitute 7 for y, and solve for x. Then substitute 9 for y, and solve for x again.
7 = x + 5, x = 2

9 = x + 5, x = 4

So the range is 2 and 4.

Answer Link

Otras preguntas

Read this sentence: Shelby flittered around the room chatting with old friends and making new ones like she was a butterfly dancing on the expectant winds

How is noun phrase being used in this sentence ? Mark Twain ,a great American writer, was born in Hannibal,Missouri .

what divided by 10 equals 407.7

Describe three clean coal technologies and how they can mitigate the environmental impacts of coal. Explain how they work and provide a source that provides evi

In a recent year, the weather was partly cloudy 2/5 of the days. Assuming there are 365 days in a year, how many days were partly cloudy?

Arsenic levels in groundwater are typically 200-500 µg/L in Bangladesh. Please convert this range to ppb. assume 1L of water is 1 kg.

Please help on this one!! Please tell me why you got that answer.

2. Estimate how many times larger 2 x 10^-5 is than 4 x 10^-12 in the form of a single digit times an integer power of 10.

How many factors of muliplication does 20 have

The answer to the problem