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The answer to this problem is 4
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
Y = yo + Vot - (gt^2)/2
0 = 0 + 31t - 4.9 t^2
0 = -4.9 t^2 + 31t
Answer: option A.
Answer:
0.5333
Step-by-step explanation:

Please mark 2 brainliests because I need.