Need help on this tough question I have no idea how to figure out... I have a screenshot of it :D

Question

anonymous · Answer

@undeadknight26 @phi

anonymous · Answer

@ash2326 @radar @thomaster @wio @e.mccormick @whpalmer4 @timo86m @zzr0ck3r @hba @blues @Preetha @beccaboo333 @Ashleyisakitty @CGGURUMANJUNATH @wolfe8

beccaboo333 · Answer

Please don't tag many people at once. I cannot help you. I'm sorry.

anonymous · Answer

Its ok and im sorry :(

isaiah.feynman · Answer

For part a, it's generic..when the graphs of two equations intersect, to find their intersection point you equate the equations and solve for the x co ordinate of the intersection point. That x co ordinate is a common solution to those two equation, because the values of the two equations are the same at that point!

whpalmer4 · Answer

for part c, to solve it graphically, simply graph both functions on the same piece of paper.  where the curves intersect is the set of points where the same values of x produce the same values of y in the different functions.  in other words, the solutions.

anonymous · Answer

So this question is really just generic answers not exact?

whpalmer4 · Answer

to make the tables for part b, you just make a table showing 3 columns:

x    4^-x    2^(x+3)
-3
-2
-1
0      1          8
1
2
3

I filled in the 0 row for you, you do the rest.  You should find a row that has the same value for both of the right hand columns.  that's the spot where the curves intersect.

anonymous · Answer

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whpalmer4 · Answer

oh, the answers are exact — @Isaiah.Feynman was just pointing out that the answer to part A is generic; it doesn't matter what the formulas actually are, the explanation is the same.