The order of operations is PEMDAS; which stands for Parenthesis, Exponents, Multiplication and Division, and Addition and Subtraction; this is the order used to solve expressions, equations, and inequalities.
Answer:
There is none
Step-by-step explanation:
The slopes of perpendicular lines are negative reciprocals.The slope of the given line is 4.The slope of the perpendicular is -1/4.
Now we need to find the equation of a line that has slope -1/4 and passes through the point (4, 20).
We use the point-slope form of the equation of a line, where m = slope, and the point is (x1, y1).
y - y1 = m(x - x1)
y - 20 = -1/4(x - 4)
-4y + 80 = x - 4
x + 4y = 84