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Sketch your "intentions" and post a photograph. Then we can critique it!What would this graph look like? So far, I've plotted a horizontal line along the X axis reaching, basically, from -7 to 4 (yes, I know about the stopping points because of the square root of five), as well as a vertical line from -8 to 3.
What else should I do? I am a bit confused.
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The graph you draw has to be contained in the rectangle defined by the intervals you drew (though your lines on the axes are not directly relevant). That is, sketch in lines perpendicular to your lines, at their endpoints.What would this graph look like? So far, I've plotted a horizontal line along the X axis reaching, basically, from -7 to 4 (yes, I know about the stopping points because of the square root of five), as well as a vertical line from -8 to 3.
What else should I do? I am a bit confused.
View attachment 24257
Sketch your "intentions" and post a photograph. Then we can critique it!
show us an image of whatever you have drawn, so we can guide you along.
As I understand the problem, you only need to draw a graph, you don't need to show the function. So draw whatever you want as long as it remains a valid graph. Yours is not valid - a function can't have more than one y value for any x.This is my attempt so far... I don't know why I'm having such an issue with it. I tried a piecewise function as I have no idea how to achieve this with a single quadratic or cubic function, or a single function of any kind. . Would that be a legitimate way to go about this?
The reason I don't know how to use a quadratic function for this is twofold: I don't know where to put the vertex and 2. Not sure how I deal with the excluded point (square root of five which is about 2.23 on the X axis).
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You may be forgetting that a function doesn't have to be of a particular named type, or even to have a formula at all. I would just sketch a curve freehand.This is my attempt so far... I don't know why I'm having such an issue with it. I tried a piecewise function as I have no idea how to achieve this with a single quadratic or cubic function, or a single function of any kind. . Would that be a legitimate way to go about this?
The reason I don't know how to use a quadratic function for this is twofold: I don't know where to put the vertex and 2. Not sure how I deal with the excluded point (square root of five which is about 2.23 on the X axis).
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Hi mickey. I'd guess the reason has something to do with not enough practice using (or thinking about) the mathematical definition of a function, before getting this exercise.… I don't know why I'm having such an issue with it…
Hi mickey. I'd guess the reason has something to do with not enough practice using (or thinking about) the mathematical definition of a function, before getting this exercise.
Have you heard of the Vertical Line Test, for determining whether an xy-graph represents a functional relationship between x and y?
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The problem clearly states to draw a graph of a function.Here is my latest attempt to answer the question, which I misread horribly. I thought it was asking me to draw a function. Assuming it isn't... here we go:
do the "excluded" points require any kind of representation in this image?
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Okay, here is a rough sketch. I was actually in the middle of doing what you asked before I read your request, because I thought I ought to include the graph of a function as well. **edit** I colored in the point (0,3) while not needing to.The problem clearly states to draw a graph of a function.
So go back and draw any function that lives up to the domain and range. Use the hint which I provided in my last post.
Lets call your function f(x). Based on your graph can you tell me the (approximate) value of f(sqrt(5))?Okay, here is a rough sketch. I was actually in the middle of doing what you asked before I read your request, because I thought I ought to include the graph of a function as well. **edit** I colored in the point (0,3) while not needing to.
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My understanding is that the square root of 5 is omitted from the function, so it wouldn't have a value, so undefined?Lets call your function f(x). Based on your graph can you tell me the (approximate) value of f(sqrt(5))?
What's the meaning of the black dot on the right end of the curved portion of your graph?My understanding is that the square root of 5 is omitted from the function, so it wouldn't have a value, so undefined?
I deleted my last response when I realized I read your question incorrectly.
What's the meaning of the black dot on the right end of the curved portion of your graph?