Answer:
There are a lot of turning point in the history of algebra one of those is the discovery of the plain and the quadrants by Rene Descartes. This discovery paved way to a lot of knowledge which was later on use in solving other complicated mathematical problems.
Step-by-step explanation:
Y=mx+b
Slope is m
Y intercept is b
So it's-4
The question is incomplete. The complete question is :
A man travels by a car from town A to town B, a total distance of 100 km at an average speed of x km/h. he finds that the time for the journey would be shorter by 25 minutes if he increases his average speed by 12km/h. Find x ?
Solution :
It is given the that the distance between town A and B is = 100 km
His initial average speed is = x km/h
His increased average speed is = 12 km/h
Time is shortened by = 25 minutes
So according to the question,
x-12 = 2500
x = 2512
Answer: Domain: {2}
Step-by-step explanation:
1. By definition, the domain is the input value, this means that it is the x-value of a function.
2. Therefore, keeping the definition above on mind, you have that the domain of x is the x-value of each ordered pair.
3. Then, given x = {(2, 3), (2, 4), (2, 5), (2, 6)}, you can see that x-value of each ordered pair is 2. Therefore, you can conclude that the domain of x is:
Domain:{2}
