Answer:
slope -intercept form y=mx+c
The equation of the straight line
y = 0x +13
Explanation:
Step(i):-
Given that the points
(11 ,13) and (7,13)
The slope of the line

Step(ii):-
Equation of the straight line passing through the point (11,13) and slope m=0
y - y₁ = m( x-x₁)
y - 13 =0(x-11)
y-13 =0
y =13
slope -intercept form y=mx+c
y = 0x +13