Ask your own question, for FREE!
Mathematics 22 Online
OpenStudy (anonymous):

help pleaseeee

OpenStudy (anonymous):

OpenStudy (mathstudent55):

The vertical translation is obviously -2. We need to find what the stretch is. Take a point in f(x) as an example. For example, what is f(1) = ?

OpenStudy (mathstudent55):

@divagirl421 Are you there?

OpenStudy (anonymous):

We have f(0)=-2 and f(2)=0. For A we have \[f(2)=-(-2)^2-2=-6\ne0\] For B we have : \[f(2)=6(2)^2-2=22\ne0\] For D we have :7 \[f(2)=2^2-2=2\ne0\] But for C we have : \[f(2)=0.5\times2^2-2=2-2=0\] So : The function is \[f(x)=0.5x^2-2\]

OpenStudy (anonymous):

thats wrong

OpenStudy (mathstudent55):

It's \(f(x) = 0.6x^2 - 2\)

OpenStudy (agent0smith):

@Noura11 f(2) is not equal to 0 (it's just close to zero).

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!