Answer:
You take how much it cost by 20 percent and that's how much their tip is
Step-by-step explanation:
7.12
First find the slope of the line segment joining the points.
Slope = ((-5)-7)/(1-(-3)) = -3
The slope of any perpendicular to the line is 1/3
Find the midpoint of the line segment by taking the average of the coordinates.
x-coord of midpoint = (-3+1)/2 = -1
y-coord of midpoint = (7-5)/2 = 1
Midpoint : (-1,1)
Point-slope equation for line of slope 1/3 that passes through (-1,1):
y-1 = (1/3)(x+1)
X< -4
You need to do inverse operations and add 12 to both sides.
(X * y) + 9
Xy + 9
you can't reduce it further
~Zoe