document.write( "Question 797382: How do I make a t-table of values for y = x2 + 4x + 1. AI was suggested to start with values at -5. What does that mean, and is there anyway you can help me graph them? \n" ); document.write( "
Algebra.Com's Answer #481769 by solver91311(24713)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Make a little table with two columns. Label one of the columns and the other one . Write -5 in the column. Substitute for in and do the arithmetic. Write the value you obtain for in the column.\r
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\n" ); document.write( "\n" ); document.write( "Repeat the process as often as you think you need using different values in the column. Definately use -2 as one of your values, and pick your other values equally distant on either side of -2. For example, you are using -5 (3 to the left of -2), so be sure to use 1 (3 to the right of -2). If you use -4, be sure to use 0. Using 0 is always a good idea anyway.\r
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\n" ); document.write( "\n" ); document.write( "Once you have as many entries in your table as you think you need (I suggest 5 or 7, as pleases you) then the and values in each row of the table form an ordered pair . Construct your ordered pairs and then plot them on an graph. Finally, draw a smooth curve through your points. Hint: The point (-2,-3) is the minimum point of this function.\r
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\n" ); document.write( "\n" ); document.write( "How did I know the vertex or minimum was at -2? For any quadratic function , the vertex is a minimum if is positive, and the coordinate of the vertex is , or in your case: \r
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