For an LP in standard form with constraints Ax = b and x ≥ 0, show that d is a direction of unboundedness if and only if Ad = 0 and d ≥ 0.

Manuela claims that and are congruent. which statement best describes her claim? she is incorrect because the segments do not have the same orientation. she is incorrect because the segments do not have the same length. she is correct because the segments have the same length. she is correct because the segments have the same orientation.