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Write an equation for the graph

Write an equation for the graph-example-1
User Shey
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Answer:

y = -2x +5

Explanation:

You want an equation for the graph showing a line with a y-intercept of 5 and a slope of -2.

Slope

The slope of the line is the ratio of "rise" to "run". The line on the graph goes down 2 units (rise = -2) for each 1 unit to the right (run = 1). This means the slope is ...

m = rise/run = -2/1 = -2

Intercept

The y-intercept is the value of y where the line crosses the y-axis. It is ...

b = 5

Equation

The slope-intercept equation for the line is ...

y = mx +b

y = -2x +5

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User Vidalsasoon
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