Answer:
12
Step-by-step explanation:
Hope it helps
Answer:

Step-by-step explanation:
Given:



First, we have that the line is parallel to RS.
This means that the line has the same slope as RS and the slope of RS is calculated as follows:




So, the line has a slope of 
Next, we have that the line passes through
.
The equation of the line is then calculated using the following formula



Open bracket

Make y the subject


Answer:
vertex (5,2)
axis of symmetry: x=5
Step-by-step explanation:
vertex (h,k)
y = a(x - h)² + k
f(x)=(x-5)²+2 a = 1 h = 5 k = 2
vertex (5 , 2)
The axis of symmetry always passes through the vertex of the parabola. The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola.
x = 5