romogrecia25 romogrecia25

19-07-2022
Mathematics

contestada

Question 1 of 5
Select the correct answer.
Which function has a domain of (-♾, ♾)and a range of (-♾, 4)?

PLEASE HELP

A: f(x) = -x^2 + 4

B: f(x) = 2^x +4

C: f(x) = -4x

D: f(x) = x + 4

Respuesta :

Medunno13 Medunno13

22-07-2022

Answer: A

Step-by-step explanation:

A) Correct. [tex]x^2 \geq 0 \implies -x^2 \leq 0[/tex]

B) Wrong. [tex]2^x > 0[/tex], so the range is [tex](4, \infty)[/tex]

C) Wrong. Linear functions have a range of all real numbers.

D) Wrong. Same logic as C.

Answer Link

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

Otras preguntas

Potassium 40 has a half-life of 1.2 * 7 of the nine years decay to argon 40. A sample of rock contains 1.35 * 10 to the -6 moles of potassium 40 and 6.81 * 10 o

When was the information published?

a certain television is advertised as a 69-inch tv(the diagonal length). If the height of the tv is 45 inches, how wide is the tv? round to the nearest tenth of

An aorist verb describes: a. A completed action which is usually in the past b. An incomplete action which is usually in the present c. An undefined action whic

The PCI DSS (Payment Card Industry Data Security Standard) certification is not considered a standardized third party review. a. Trueb. False

If the reserve requirement is 25 percent and banks hold no excess reserves, an open market sale of $400,000 of government securities by the Federal Reserve will

What was so important about Eisenhower's response? Responses It showed the Arkansas governor that the president supported him. It showed the Arkansas governo

A cosmic ray travels 60.0km through the earth's atmosphere in 300 mu s, as measured by experimenters on the ground. How long does the journey take according to

The skills learned over these past 13 weeks of this biostats course will help me interpret the published research to improve population health in my patients. a

In a survey, it was found that 63 of adults operate the flusher of toilets in public restrooms with their foot. (a) If 300 adults are randomly selected, how man