lim
x→9
7x + 9
WHAT IS THE LIMIT?

Question

lim 
x→9 
7x + 9 
WHAT IS THE LIMIT?

imstuck · Answer

You could do this by direct substitution.  Replace the x with a 9 and get 7*9 + 9 = 72.  If you graphed this (if you had a long enough piece of graph paper, that is), you would see that when x = 9, the function has a value of 72.  (9, 72) would be the coordinates.

anonymous · Answer

THATS NOT WHAT THIS QUESTION IS ASKING. ITS ASKING FOR THE LIMIT NOT JUST TO 
 THE NUMBERS.

anonymous · Answer

IMStuck is correct. In this case your function is continuous, so the limit is equal to the function value.

imstuck · Answer

Thank you, HawkIrontusk.  I am a high school math teacher after all...

anonymous · Answer

but its not right.Kudos to being a math teacher though

anonymous · Answer

But it is right. If you're really not understanding why, then I suggest that you go over your notes again instead of bashing the people who are trying to help you.

I taught calculus at my university while I was in graduate school. So now you're had a high school math teacher and a college math teach tell you the same thing. Why do you think you know better than we do?

anonymous · Answer

How is that bashing? LOL i submitted the answer and it was wrong. kudos to you too!

anonymous · Answer

Best of luck in your class. You'll need it.