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sweetandsourpineapple

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Graphing functions

Given that the graphs of y=h(x) and y=j(x) intersect at (2,2), (4,6), (6,12), and (8,12), there is one point where the graphs of y=h(2x) and y=2j(x) must intersect. What is the sum of the coordinates of that point?

zetafunc

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Registered: 2014-05-21

Posts: 2,440

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Re: Graphing functions

Hi sweetandsourpineapple/superspicygeek,

Welcome. Have you considered registering an account here?

For your question, try writing out explicitly what h(2), h(4), h(6), h(8), j(2), j(4), j(6), j(8) are. Then, from your list, work out which of your points satisfies h(2x) = 2j(x). Can you do this?