document.write( "Question 469970: I have a student who is coming to me for tutoring for the Praxis I. Initially, I was supposed to be a writing tutor, but due to circumstances beyond my control, it has become necessary for me to tutor her in math as well. I am pretty decent with math, but there is one issue she is having that I can not, for the life of me, remember how to do. The question is this:\r
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document.write( "There is a picture of a graph that has a curve plotted on it. \r
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document.write( "The question asks, \"Which of the following inequalities is represented by the graph above?\"\r
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document.write( "I am given the following answer choices:\r
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document.write( "(Disclaimer - I do realize that these answer choices are equations, not inequalities, but I am merely quoting the study packet.)\r
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document.write( "A. y = x squared + 2
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document.write( "B. y = x squared - 2
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document.write( "C. y = x squared + 2x
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document.write( "D. y = x squared - 2x (correct, according to the answer key)
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document.write( "E. y = x squared + 2\r
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document.write( "While I realize that you do not have the graph to look at, could you please explain how to do these types of problems so that I can help my student? Thanks. \n" );
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Algebra.Com's Answer #322396 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! y = x^2 is the following: \n" ); document.write( "It touches the x-axis at (0,0) \n" ); document.write( " \n" ); document.write( "---- \n" ); document.write( "y = x^2+2 moves all the points up 2 ; crosses the y-axis at (0,2) \n" ); document.write( "--------------------- \n" ); document.write( "y = x^2-2 moves all the points down 2 ; crosses the y-axis at (0,-2) \n" ); document.write( "---- \n" ); document.write( "y = x^2-2x = x(x-2) cuts the x-axis at x = 0 and x = 2 \n" ); document.write( "---- \n" ); document.write( "y = x^2+2x = x(x+2) cuts the x-axis at x = 0 and x = -2. \n" ); document.write( "------------------ \n" ); document.write( "cheers, \n" ); document.write( "Stan H \n" ); document.write( " |