Y equals 4x-2 that is my awnser
Sorry if im to late but these were the right answers
2r - 4 2(r - 2)
--------- = ----------- = 2
r - 2 r - 2
answer
2
Answer:

Step-by-step explanation:
step 1
Find the slope of the perpendicular line
we know that
If two lines are perpendicular, then their slopes are opposite reciprocal
(the product of their slopes is equal to -1)
In this problem
we have

The equation of the given line is 
so
the slope of the perpendicular line to the given line is

step 2
Find the equation of the line in point slope form

we have


substitute

Convert to slope intercept form

Distribute right side



Answer:
If she doubles it then it will be 4: 10
If she triples it then it'll be 6: 15
Hope that helps!