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Mathematics 9 Online
OpenStudy (anonymous):

Someone please help! \[find the range of the function f(x)= \sqrt{2x-4}-5\]

OpenStudy (mathstudent55):

The variable is inside a radical. No matter what number you put in for x, the smallest the root can be is 0. Then you subtract 5, so the lowest value y can have is -5. The highest is infinity.

OpenStudy (anonymous):

The range Is such that it will always be equal or greater than -5

OpenStudy (anonymous):

so what would be the answer?

OpenStudy (anonymous):

A. y ≤ -5 B. y ≥ -5 C. y > -5 D. y ≤ 5

OpenStudy (mathstudent55):

In interval form, the range is \([ -5, \infty) \)

OpenStudy (anonymous):

so is it Letter B

OpenStudy (mathstudent55):

Choice B.

OpenStudy (anonymous):

Thankyou, i have more questions can you please help? <3

OpenStudy (mathstudent55):

Correct.

OpenStudy (mathstudent55):

Pls start a new post for each one. I can help for around 15 minutes now.

OpenStudy (anonymous):

Okay Thankyou so much !<3 posting new question

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