a > 0
see graph below
Explanation:
The first thing is to solve the inequality:
-5( 1 - 4a) > - 5
expand the parenthesis:
-5(1) -5(-4a) > - 5
-5 + 20a > - 5
collect like terms by adding 5 to both sides:
20a > - 5 + 5
20a > 0
a > 0/20
a > 0
plotting the graph:
