Answer:

Step-by-step explanation:
The slope-intercept form of an equation of a line:

<em>m</em><em> - slope</em>
<em>b</em><em> - y-intercept → (0, </em><em>b</em><em>)</em>
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The fromual of a slope:

<em>(x₁, y₁), (x₂, y₂)</em><em> - points on a line</em>
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We have the points from the graph:
(0, 1) → <em>b = 1</em> and (3, 3).
Calculate the slope:

Finally we have the equation of a line:
