Ask your own question, for FREE!
Pre-Algebra 24 Online
OpenStudy (anonymous):

AWARDING MEDALS! F(x) = (x-1) (x-2) includes 2 real rational solutions because?

OpenStudy (azureilai):

when you set x-1 and x-2 to zero and solve for x, actual numbers come up, not an imaginary number. Also, if you graphed it, there are two distinct places where the graph crosses the x-axis, which means it has two zeros.

OpenStudy (anonymous):

oh okay! That makes sense. Thank you!

OpenStudy (azureilai):

no problem

OpenStudy (anonymous):

Can you help with another one please?

OpenStudy (azureilai):

sure

OpenStudy (anonymous):

G(x) = (x – ^2) (x- ^2) includes 2 real irrational solutions because?

OpenStudy (azureilai):

Okay, so does it looks like this \[G(x)=(x^{-2})(x^{-2})\]?

OpenStudy (anonymous):

yes :-)

OpenStudy (anonymous):

I made these functions so if they don't work with the question, can you please tell me?

OpenStudy (azureilai):

Ok, well the thing is x^-2 = 1/x. and when you graph it, it only approaches the x-axis and never touches it. The x-axis is known as an "asymptote" and because it never actually touches the x-axis the zeroes that it has are irrational. Also when you set the equation inside the parentheses to zero, it is impossible to solve for x.

OpenStudy (anonymous):

oh okay! That makes sense! thanks soo much!!

OpenStudy (azureilai):

no prob

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!