Hey, I'm having some trouble with this question. Create your own function to teach the Martians about functions. Your function must contain at least two different operations. Using complete sentences, prove to Splott and Fizzle that your function is a legitimate function. How do I prove my function is a legitimate function using sentences? My function is f(x) = 5x +2. Thanks in advance!

Question

ipwnbunnies · Answer

Do you know how to determine if a relation is a function or not?

anonymous · Answer

for 1 x there is a y

ipwnbunnies · Answer

Correct. Plus, there can't be 2 y values to an x value. So, one way you can prove this binomial is a function is if you graph it, and apply the Vertical Line Test. If a vertical line only goes through one point at any time, then the expression is a function.

anonymous · Answer

Yes, but the question asks me to prove it is legitimate by using complete sentences

ipwnbunnies · Answer

Oh, that is true. Well, you can explain that when you graph and and apply the Vertical Line Test, it will be a function. Hmm, you can explain that for every x value you plug in, you'll get a unique y value. o.o

anonymous · Answer

yea I will do that. Also do you know how to answer this. Using your function, explain to the Martians how to solve for f(3). Show your work and explain each step using complete sentences.

ipwnbunnies · Answer

That's pretty simple. Explain how f(3) is the same as plugging in 3 for x, and getting a y value out. I have to go now, sorry if I can't further help you.

anonymous · Answer

thanks a lot

anonymous · Answer

anyone can help?