Answer:
Step-by-
An orthogonal coordinate system is a system of curvilinear coordinates in which each family of surfaces intersects the others at right angles. where is the Kronecker delta. where the latter is the Jacobian.
"Two vectors are perpendicular if their dot product is zero, and parallel if their dot"
Y = kx is the direct variation equation.
Use the x and y given to find k. After finding k use it to write a new equation.
120=k*50
Divide by 50 on both sides
120/50=k 12/5=k
y = (12/5)(40) y=96
X/30=15/100. Cross multiply to find x.
Answer:
<em>m</em> = 6
Step-by-step explanation:
Slope Formula: 
Simply choose 2 points and plug them into the formula to find slope<em> m</em>:
(1, 20)
(2, 26)


<em>m</em> = 6