Linear inequalities in two variables

Question

Consider the inequality y ≥ ax + 6. The point (2,1) is in the solution region when:

 

a) a>-5/2

 

b) a<-5/2

 

c) a ≥ -5/2

 

d) a≤ -5/2

Answer 1

a) 1 ≥ (0)(2) + 6   (a > -5/2)

1 ≥ 6

0 ≥ 5

 

Nope.