Answer:
y = 125
Step-by-step explanation:
Given that,
y is directly proportional to x² i.e.

k is a constant of proportionality
Put y = 20 and x = 2 in the given equation to find k.

Now put k = 5 and x = 5 in the given equation to find y.

So, the value of y is equal to 125.
Answer:
r 0,6 which is 270 degres
Step-by-step explanation:
Answer:
parallel = 4/3
perpendicular =-3/4
Step-by-step explanation:
Solve for y
-4x+3y=11
Add 4x to each side
3y = 4x+11
Divide by 3
y = 4/3 x +11/3
This is in the form y = mx+b where m is the slope
m =4/3
The parallel line has the same slope
parallel slope is 4/3
The perpendicular line has a negative reciprocal slope
m = -(1 /4/3) = - 3/4