Now first we find the slope 'm' using the formula m =

Now putting the values in formula then we get

m =

m = 2/5

Now we have the slope then we can find the value of constant 'c' using the formula which is

Y = mX + c

putting the values of X, Y and m then

0 = 2/5(-5) + c [Note that values of X and Y can be put from any one of pair]

0 = -2 + c

c = 2

Now we put the values of c , m , X and Y in equation 1 to find the equation of line using the slope/intercept formula which is Y - Y1 = m(X - X1) .................1

Putting the values in 1, we get

Y - 0 = 2/5(X - (-5))

Y = 2/5(X + 5)

Multiply by 5 on both sides, we get

5Y = 2(X + 5)

5Y = 2X + 10

Or 2X - 5Y + 10 = 0

which is the equation of line.

Aug 13th, 2014

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