**MTH
030 -- Elementary Algebra -- Exercise Solutions
Section:**

6a) The point (3, 1) is **not** a solution
of the inequality x + 4y < -1.

When the coordinates of the point
are substituted into the inequality we obtain

1 + (4)(3) < -1 which is
FALSE because 13 is not less than -1.

6b) The point (-2, 0)** is** a solution
of the inequality x + 4y < -1.

When the coordinates of the point
are substituted into the inequality we obtain

0 + (4)(-2) < -1 which is
TRUE because -8 is less than -1.

6c) The point (-0.5, 0.2) is **not**
a solution of the inequality x + 4y < -1.

When the coordinates of the point
are substituted into the inequality we obtain

-0.5 + (4)(0.2) < -1 which
is FALSE because 0.3 is not less than -1.

6d) The point (-2, 1/4) is **not** a
solution of the inequality x + 4y < -1.

When the coordinates of the point
are substituted into the inequality we obtain

-2 + (4)(1/4) < -1 which
is FALSE because -1 is not less than -1.

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