Translating Algebraic expressions

fc1123

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Feb 4, 2010
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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?
 
fc1123 said:
when they say nine greater than a number is it x + 9

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

 
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