To find the slope
Points given are:
C(3,5) D(2, 6)
x₁ = 3 y₁ = 5 x₂ = 2 y₂ =6
Using the formula below :
[tex]\text{slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]Substitute the values and evaluate
[tex]\text{slope =}\frac{6-5}{2-3}[/tex][tex]=\frac{1}{-1}=-1[/tex]Hence, the slope is -1