2 ways:
1. <span>narrow confidence interval
2. </span><span>confidence interval </span>
Answer:
4
Step-by-step explanation:
Slope refers to the steepness of the line.
Slope is equal to change in value of y divided by change in value of x.
The slope of the secant line is given by
.
Given points are 
So, slope of the secant line is 
(i) At x = 4.9,

(ii) At x = 4.99,

(iii) At x = 4.999,

(iv) At x = 4.9999,

(v) At x =5.1,

(vi)
At x = 5.01,

(vii) At x = 5.001,

(viii) At x = 5.0001,

(b)
Slope of the tangent line is 4.
Answer C. 2.00 Meters/second
1 kilometer = 1000 meter
1 hour = 3600 seconds
7.2 x 1000 = 7200
so 7200 meters an hour
or 7200 meters every 3600 seconds
7200/3600
we then want the 3600 to become one second to find meters per (1)second.
so 7200/3600 simplified = 2. 2 meters per second
answer C