50 km/h = 50,000m / hr
= 50,000 / 60 = 833.333 m / minute
The tire rotates 500 times for this period
So the circumference of the tire = 833.333 / 500 m
= 1.67 m to the nearest hundredth
=
You use explicit funtion to find a particular number in the list without needing to write all the list down.
For example, the first range of number has a constant difference of 5. Its explicit funtion would be: x(n)=3+(n-1)*5 (with x is the number you need to find, n is the number's position in the range)
Basically, a explicit funtion in that problem has the form:
x(n)=f+(n-1)*d
with:
x= the number needed to find
n= the number's position
f = the first number in the range
d = the distance
Good luck!
The slope of 2x - y = 9 is 2x
