See the explanation
<h2>
Explanation:</h2>
Remember you have to provide complete questions in order to get exact answers. Here I'll provide a general explanation, so:
<h3>First.</h3>

The slope is:

The y-intercept is:

By using graphing tool, we get the first graph shown below.
<h3>Second.</h3>

The slope is:

The y-intercept is:

By using graphing tool, we get the second graph shown below.
<h3>Third.</h3>

The slope is:

The y-intercept is:

By using graphing tool, we get the third graph shown below.
<h3>Fourth.</h3>

The slope is:

The y-intercept is:

By using graphing tool, we get the fourth graph shown below.
<h2>Learn more:</h2>
Linear inequalities: brainly.com/question/12984296
#LearnWithBrainly
Answer: …………..
Step-by-step explanation:
……………..
Yes because 84+45 is 129 and 3(28+15) is 129