If there is no expression, it surely is equal to 0.
Parallel is when there the same and perpendicular is when it switches around.
Ex. Parallel: 5x+ 4y=_
Perpendicular: 4x+5y=_
Hope this is helpfull!
Answer:
2/ x = +-2
3/ n = +-3
Step-by-step explanation:
I think it is the last one because 5/1 × 4/4 = 20/4 or 5
Let's first write down the equations which we will require to solve for this problem.
Equation No. 1 -
x km/h = y mph
Equation No. 2 -
8 km/h = 5 mph
First of all, we will make y the subject by calculating the km/h when mph = 1. We will accomplish this by dividing both sides by 5 as displayed below:
Equation No. 2 -
8 km/h = 5 mph
5 mph = 8 km/h
5 / 5 mph = 8 / 5 km/h
1 mph = 8 / 5 km/h
Through this, we have found out:
m = 8 / 5
We will use the y = mx formula in order to obtain our final equation. We will substitute the value given in the second equation into the formula.
y = mx
y = ( 8 / 5 ) x
