Can someone show me how to answer all of these questions?

Given the inequality below. Will the boundary line be dotted or solid? (5 points) Explain your answer. (5 points) Do the values on the boundary line make the inequality true or false? (5 points) Explain your answer. (5 points)
3x - 5y 15

Question

Can someone show me how to answer all of these questions? 

Given the inequality below.  Will the boundary line be dotted or solid? (5 points) Explain your answer. (5 points)  Do the values on the boundary line make the inequality true or false? (5 points)  Explain your answer. (5 points)
3x - 5y > 15

anonymous · Answer

It will be dotted as there is no equal sign. 
False as they are not smaller or larger than 15 but exactly equal

lifeisadangerousgame · Answer

My teacher won't accept that though, can you show me how to explain it?

lifeisadangerousgame · Answer

And my comp didn't copy it correct. $$3x - 5y \ge 15$$ that's the correct one

aroub · Answer

It is solid then

aroub · Answer

Because there is an equal sign

lifeisadangerousgame · Answer

Thank you, how do I find if the values on the boundary line make the inequality true or false? (5 points

aroub · Answer

Do you have to graph it ?

lifeisadangerousgame · Answer

Yea, but I don't know how

lifeisadangerousgame · Answer

I know that the shaded area will be above the line

lifeisadangerousgame · Answer

Should I put (0,0) into the equation to figure tihs out?

aroub · Answer

Yes

lifeisadangerousgame · Answer

$$3x - 5y \ge 15$$
$$-5y \ge -3x + 15$$
$$y \le 3/5x - 3$$
and finally
$$y \le 3/5x - 3 = 0 \le -3? $$

lifeisadangerousgame · Answer

Is this right?