The difference of three times a number and six is greater than or equal to the sum of fifteen and twenty four times a number

x<=-1

Step-by-step explanation:

3x-6>=15+24x

3x-24x-6>=15

-21x-6>=15

-21x>=15+6

-21x>=21

x>=21/-21

x>=-1

x<=-1

easy its decreasing

step-by-step explanation:

because its top point is at the to of the graph on the left side (atleast from the veiw i see it) now if that top point wast in the lower part of the graph it would be increasing hope this have a nice day