Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2017-08-01 12:25:40

sweetandsourpineapple
Guest

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?

#2 2017-08-02 01:03:41

zetafunc
Moderator
Registered: 2014-05-21
Posts: 2,130
Website

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?

Offline

Board footer

Powered by FluxBB