Linear Equations

A line passes through the points $\left(4,-6\right)$(4,−6) and $\left(6,-9\right)$(6,−9).

a

Find the gradient of the line.

b

Find the equation of the line by substituting the gradient and one point into $y-y_1=m\left(x-x_1\right)$`y`−`y`1=`m`(`x`−`x`1).

Easy

Approx 4 minutes

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