F fc1123 New member Joined Feb 4, 2010 Messages 16 Feb 15, 2010 #1 Ok I am stuck on when they say nine greater than a number I am not sure how to write it is it x+9 or is this wrong?
Ok I am stuck on when they say nine greater than a number I am not sure how to write it is it x+9 or is this wrong?
mmm4444bot Super Moderator Joined Oct 6, 2005 Messages 10,958 Feb 15, 2010 #2 fc1123 said: when they say nine greater than a number is it x + 9 Click to expand... Yes. The expression x + 9 represents a value that is nine greater than the value represented by x alone. This becomes more clear, if we evaluate the expression x + 9 for various values of x, and then compare. Let x = 1 Then x + 9 = 10 10 is nine greater than 1 Let x = 10 Then x + 9 = 19 19 is nine greater than 10 Let x = -9 Then x + 9 = 0 0 is nine greater than -9
fc1123 said: when they say nine greater than a number is it x + 9 Click to expand... Yes. The expression x + 9 represents a value that is nine greater than the value represented by x alone. This becomes more clear, if we evaluate the expression x + 9 for various values of x, and then compare. Let x = 1 Then x + 9 = 10 10 is nine greater than 1 Let x = 10 Then x + 9 = 19 19 is nine greater than 10 Let x = -9 Then x + 9 = 0 0 is nine greater than -9