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If x is an integer and y = −3x + 7, what is the least value of x ... ...

If x is an integer and y = −3x + 7, what is the least value of x for which y is less than 1?


(A) 1
(B) ...
(C) ...
(D) ...
(E) ...

*This question is included in Nova Math - Diagnostic: Test / Review

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If x is an integer and y = −3x + 7, what is the least value of x ... ... 
Posted: 05/11/2013 15:11
How do you do this problem?
Contributor
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Posted: 05/14/2013 13:57
Maggie, did you check the Solution yet :) ?

y = -3x + 7; the question is asking about the least value of x for which y < 1.

So -3x + 7 < 1, or -3x < -6. Further simplifying, we can divide both sides by -3, but remember that dividing an inequality by a negative number flips the sign. So we get x > 2. This means, as long as x is larger than 2, y is less than 1. The least x possible is 3.
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