Math Is Fun Forum

Favorite song at the moment would have to be Handlebars by the Flobots.

Long time no see guys, I just got back from Hawaii today and it was SPECTACULAR. Ask if you want to hear more O.o. Here's a joke to kick things off again:

George W. Bush, distraught over his worsening approval rating, was jogging through Washington in search of inspiration. Taking a break upon reaching the Washington Monument, he looks up for guidance and says, “George, you were one of our greatest Presidents, what should I do?”

Suddenly, a voice is heard from above. George Washington says to George W, “Abolish the I.R.S. and start over.”

George W, amazed that he’s actually talking to a past President, continues his job and this time stops at the Jefferson Memorial. Uttering a similar question to Thomas Jefferson, America’s author of the Declaration of Independence and one of its great early philosophers, he asks “Thomas, you’ve never had these kinds of problems. What can I do to rally people behind me?” Again a voice from above answers, “Welfare is not working, abolish it and start over.”

Upon hearing such great advice, George gets excited and plans on going to all the historical sites for guidance. Next stop is the Lincoln Memorial to see President Abraham Lincoln, who met his untimely death after winning the Civil War and keeping the country unified. “Abe, I need your help, people are losing confidence in me and they no longer trust me. What should I do?” After a substantial pause Abe replies, “Take the day off George. Go the the theatre.”

Most? Which ones are wrong? Thanks.

1. Intersecting lines represent a unique solution because if two lines intersect then they only overlap at one point. Therefore there is only one answer that satisfies both equations of the lines.
2. The term "linear" means that when the equation is graphed the picture will be a line.
3,4. For a you will need two points from each line: for a use (3,3) and (5,5) and plug these into the slope equation (m=(y2-y1)/(x2-x1) and in this case: (5-3)/(5-3). S the slope is 1. Now plug this into your slope intercept equation (y=mx+b). and you get y=x+b, but you still need to find b. so plug in the point (3,3) and you get 3=3+b and solve for b. b=0. So now you have everything you need for the equation (m=1, b=0). Plug this back in to the slope intercept equation and you get a final answer of: y=x. Do the same thing with two points from line b to get it's equation.
What you need to do for this one is plot each point for line a then draw the line, then do the same for b. Once you have the two pictures you can see the answers to b,c, and d.

To solve f(x)=x³x²-1 for f(1), you simple plug in 1 for x.

Same concept for the second part, except you will need to solve the equation twice. For the first one plug in 14 for r, in the next plug in 70:
1. 2x(22/7)x(14)
2. 2x(22/7)x(70)

Sorry I missed the last couple of days with the jokes. My granmother has been in the hospital and I haven't been on the computer in quite a few days.  Anyways, here it is:

Why do ducks have webbed feet?
To stamp out fires.
Why do elephants have flat feet?
To stamp out burning ducks.

Fruits Basket is a really popular anime. And  good one at that.

Thank you very much!
:]

Work, work, work. It seems that's all I've been doing lately. So let me apologize for not contributing more to the forums lately. O.o That aside here's today's joke:

This woman rushed to see her doctor, looking very much worried and all strung out. She rattles off: “Doctor, take a look at me. When I woke up this morning, I looked at myself in the mirror and saw my hair all wiry and frazzled up, my skin was all wrinkled and pasty, my eyes were bloodshot and bugging out, and I had this corpse-like look on my face! What’s WRONG with me, Doctor!?”
The doctor looks her over for a couple of minutes, then calmly says: “Well, I can tell you that there ain’t nothing wrong with your eyesight….”

Oh yeah I recognize Sango. I used to enjoy the show but then got bogged down a LONG time ago and stopped watching. O.o

Here's today's joke:

When NASA first started sending up astronauts, they quickly discovered that ballpoint pens would not work in zero gravity. To combat the problem, NASA scientists spent a decade and $12 billion to develop a pen that writes in zero gravity, upside down, underwater, on almost any surface including glass and at temperatures ranging from below freezing to 300 C. The Russians used a pencil.