Reduce the expression, if possible, by cancelling the common factors.
-9
We need to find a distance between this to points.
D=√((x2-x1)²+(y2-y1)²)
For complex plain, the real part of the complex number plays a role of x,
and number of an imaginary part plays a role of y.
So,
D=√((8-2)² +(7+1)²)√ = √(36+64)=√(100)=10
Answer is D.10
Required Equation is 
Given: A line passing through
and 
Slope =
= 
Equation of line is:

Where b is y intercept
for value of b

⇒ b = -1
and Equation of line is:

For another parallel line that passes through the point (-3,0)


c = 2
then the equation is:

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2 x 2 x 3 x 3
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