Question

A line passes through the points A(-1,7) and B(1,3). Write an equation of this line.

Answer 1

Answer:

y=2x+1

Step-by-step explanation:

Solve:

$m=\frac{3-7}{1-(-1)} =\frac{4}{2} =2\\m=2$

Put in slope-intercept form:

$3=2(1)+b\\3=2+b$

-2   -2

$b=1$

End equation:

$y=2x+1$

Hope this helps! :)

Answer 2

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