Answer:
The slope of the dashed line is 
Step-by-step explanation:
Perpendicular lines and slopes:
If two lines are perpendicular, the multiplication of their slopes is -1.
What is the slope of the dashed line
Perpendicular to a line with slope 4, so:


The slope of the dashed line is 
You can do this just believe in your self
It A
The formula for simple interest is
I=PRT
here P=$1200
R=5% or 0.05
T=4 years
plugging in the formula we get
I=1200*0.05*4=240
Balance after four years =1200+240=$1440
2 because that’s how the equation is