For the function whose graph is shown, the correct formula for the function would be option A; y = -2x+3.
What is the slope?
The slope is the ratio of the vertical changes to the horizontal changes between two points of the line.
Here, y-intercept is at positive 3,
so the value of b is +3
The line is going downward from left to right, so the slope will be negative.
The slope is defined as rise over run,
= 2/1, = 2,
So the "m" value is -2.
This will gives the functions equation to be
y = mx + b
y = -2x + 3.
Hence, For the function whose graph is shown, the correct formula for the function would be option A; y = -2x+3.
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