Answer: B
Step-by-step explanation:
Answer: 11 units
Step-by-step explanation:
Given: On a coordinate plane, the coordinates of vertices R and T for a polygon are R(−6, 2) and T(5, 2).
To find : length of Side RT of the polygon.
Using distance formula to find distance between (a,b) and (c,d):

Length of RT = 

hence, the length of RT = 11 units.
Point-slope form:
y - y₁ = m(x - x₁) "m" is the slope
Since you know:
m = -2/5
(x₁ , y₁) = (-3, -5)
Plug it into the equation:
y - y₁ = m(x - x₁)
y - (-5) = -2/5(x - (-3))
y + 5 = -2/5(x + 3)