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How do you solve this step by step ?

How do you solve this step by step ?-example-1
User Luuklag
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Remembering that "slope" signifies "rise" over "run," read off the rise and run from the illustration. If we start at x=-4 and move to the right 4 units, x becomes 0. The "run" is thus 4. At the same time, y increases from 0 to 2, and so the "rise" is 2.

The slope is rise/run = 2/4 = 1/2.

The y-intercept can also be read off the graph: Find the y-value on the x-axis where the graph (the sloping line) crosses the y-axis. It's 2.

Thus, the equation of this line is y = mx + b, or y = (1/2)x + 2.
User Jamy
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