Graphing help?

justan4cat

New member
Joined
May 23, 2010
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39
I don't have problems getting the x,y coordinates with a graphing calculator. In fact, I depend on it too much. I have a problem where I need to show how I got the coordinates and the graph. Can someone please help me?

Evaluate the exponential equation for three positive values of x, three negative values of x, and at x=0. Use the resulting ordered pairs to plot the graph (no problems doing this part). State the equation of the line asymptotic to the graph (if any).

y=3[sup:2v7yfh9n]x-4[/sup:2v7yfh9n] + 1

How do I get this into a form where I can plug in the values of x to solve for y?
 
justan4cat said:
I don't have problems getting the x,y coordinates with a graphing calculator. In fact, I depend on it too much. I have a problem where I need to show how I got the coordinates and the graph. Can someone please help me?

Evaluate the exponential equation for three positive values of x, three negative values of x, and at x=0. Use the resulting ordered pairs to plot the graph (no problems doing this part). State the equation of the line asymptotic to the graph (if any).

y=3[sup:16gorhyb]x-4[/sup:16gorhyb] + 1

How do I get this into a form where I can plug in the values of x to solve for y?

Read the users manual of your calculator - it will tell you.
 
Maybe I wasn't clear. I know how to get the values using the calculator. It's showing my work that has me stumped. They are asking for me to show how to do this on paper step by step. I'm too used to the calculator doing it for me, and I don't know the steps.
 
justan4cat said:
y=3[sup:37ci0xo3]x-4[/sup:37ci0xo3] + 1
How do I get this into a form where I can plug in the values of x to solve for y?

What is your problem? Just substitute your x value; say x = 6:
y = 3^(x - 4) + 1 = 3^(6 - 4) + 1 = 3^2 + 1 = 9 + 1 = 10

If you don't follow that, then you need classroom help.
 
I don't have a classroom to go to. If I did, I wouldn't need this site. It's an online school and questions take 2 days to get answers. It's the last full week. I only have one more assignment and I'm done. Thanks for your help. I'm sorry if this was a stupid question, sometimes I make this harder than it needs to be.
 
justan4cat said:
I don't have a classroom to go to. If I did, I wouldn't need this site. It's an online school and questions take 2 days to get answers. It's the last full week. I only have one more assignment and I'm done. Thanks for your help. I'm sorry if this was a stupid question, sometimes I make this harder than it needs to be.
Would have been "better" IF you had said that at the START.
NOW WE KNOW!!
 
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