Question

Calculate to represent the function whose graph is a line that passes through the points (1,2) and (−3,4). What is your slope?

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Jett

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Answer:
Slope: \frac{4-2}{-3-1}=\frac{2}{-4}=-\frac{1}{2}
Let equation of the line is y=\frac{-1}{2}x+c
It passes through the point (1,2) so, 2=-\frac{1}{2}\times1+c
Or, c=\frac{5}{2}
Equation of the line is y=-\frac{1}{2}x+\frac{5}{2}

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