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Mathematics 21 Online
OpenStudy (freemap):

Please Help Me

OpenStudy (freemap):

Which points are on the graph of ? Choose all answers that are correct.

OpenStudy (freemap):

OpenStudy (anonymous):

You're given different (x, y) points. Plug in the x-values into your equation that you were given and see which yields a true statement that matches the point. For instance (0, 1/4). If I plug in 0 into the equation that you were given, will I yield 1/4? Do this for all points and compare and see which yields a true statement.

OpenStudy (michele_laino):

Hint: if I replace \(x=0\), then i can write: \[k\left( 0 \right) = {\left( {\frac{1}{4}} \right)^0} = 1\]

OpenStudy (michele_laino):

so, please try to replace \(x=-1\), what is the corresponding value \(k(-1)\)?

OpenStudy (freemap):

so would i say -1 =1/4 and see if thats a true statement.

OpenStudy (anonymous):

You would plug in -1 for x, so \[k(-1)=(1/4)^{-1}=4\] This matches our point (-1, 4) so this is true.

OpenStudy (michele_laino):

hint: we can write this: \[\Huge k\left( { - 1} \right) = {\left( {\frac{1}{4}} \right)^{ - 1}} = 4\] so, what can you conclude?

OpenStudy (freemap):

a and d

OpenStudy (anonymous):

@freemap Sounds good to me! :)

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